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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2019	May 01, 2019
Entity Information [Line Items]
Entity Registrant Name	BEL FUSE INC /NJ
Entity Central Index Key	0000729580
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Class A Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		2,174,912
Class B Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		10,075,102

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 43,191	$ 53,911
Accounts receivable, net of allowance for doubtful accounts of $1,700 in 2019 and $1,638 in 2018	94,229	91,939
Inventories	124,785	120,068
Unbilled receivables	10,230	15,799
Assets held for sale	1,518	0
Other current assets	9,309	8,792
Total current assets	283,262	290,509
Property, plant and equipment, net	41,864	43,932
Right-of-use assets	19,022	0
Intangible assets, net	61,267	62,689
Goodwill	20,070	19,817
Deferred income taxes	1,304	496
Other assets	27,451	26,081
Total assets	454,240	443,524
Current Liabilities:
Accounts payable	48,126	56,171
Accrued expenses	27,218	32,290
Current portion of long-term debt	3,252	2,508
Operating lease liability, current	6,243	0
Other current liabilities	5,846	15,061
Total current liabilities	90,685	106,030
Long-term Liabilities:
Long-term debt	110,333	111,705
Operating lease liability, long-term	13,044	0
Liability for uncertain tax positions	28,272	27,553
Minimum pension obligation and unfunded pension liability	18,907	18,683
Deferred income taxes	1,201	1,161
Other liabilities	13,645	1,922
Total liabilities	276,087	267,054
Commitments and contingencies
Stockholders' Equity:
Preferred stock, no par value, 1,000,000 shares authorized; none issued	0	0
Additional paid-in capital	32,201	31,387
Retained earnings	169,451	168,695
Accumulated other comprehensive loss	(24,724)	(24,838)
Total stockholders' equity	178,153	176,470
Total liabilities and stockholders' equity	454,240	443,524
Class A Common Stock [Member]
Stockholders' Equity:
Common Stock	217	217
Class B Common Stock [Member]
Stockholders' Equity:
Common Stock	$ 1,008	$ 1,009

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current Assets
Accounts receivable, allowance for doubtful accounts	$ 1,700	$ 1,638
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	1,000,000	1,000,000
Preferred stock, issued (in shares)	0	0
Class A Common Stock [Member]
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized (in shares)	10,000,000	10,000,000
Common stock, outstanding (in shares)	2,174,912	2,174,912
Common stock, treasury shares (in shares)	1,072,769	1,072,769
Class B Common Stock [Member]
Stockholders' Equity:
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, outstanding (in shares)	10,085,102	10,092,352
Common stock, treasury shares (in shares)	3,218,307	3,218,307

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net sales	$ 125,389	$ 118,251
Cost of sales	101,829	97,118
Gross profit	23,560	21,133
Selling, general and administrative expense	19,798	20,692
Restructuring charges	946	4
Income from operations	2,816	437
Interest expense	(1,440)	(1,177)
Other income/expense, net	(206)	(238)
Earnings (loss) before provision for income taxes	1,170	(978)
Provision for income taxes	39	325
Net earnings (loss) available to common stockholders	1,131	(1,303)
Class A Common Share [Member]
Net earnings (loss) available to common stockholders	$ 180	$ (240)
Net earnings (loss) per common share:
Common share - basic and diluted (in dollars per share)	$ 0.08	$ (0.11)
Weighted-average number of shares outstanding:
Common share - basic and diluted (in shares)	2,175	2,175
Class B Common Share [Member]
Net earnings (loss) available to common stockholders	$ 951	$ (1,063)
Net earnings (loss) per common share:
Common share - basic and diluted (in dollars per share)	$ 0.09	$ (0.11)
Weighted-average number of shares outstanding:
Common share - basic and diluted (in shares)	10,089	9,856

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net earnings (loss) available to common stockholders	$ 1,131	$ (1,303)
Other comprehensive income:
Currency translation adjustment, net of taxes of $17 in 2019 and $25 in 2018	540	4,017
Unrealized holding gains on marketable securities arising during the period, net of taxes of $0 in 2019 and $20 in 2018	0	(31)
Change in unfunded SERP liability, net of taxes of ($11) in 2019 and ($25) in 2018	37	86
Other comprehensive income	577	4,072
Comprehensive income	$ 1,708	$ 2,769

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Other comprehensive income:
Currency translation adjustment, tax	$ 17	$ 25
Unrealized gains on marketable securities arising during the period, tax	0	20
Change in unfunded SERP liability, tax	$ (11)	$ (25)

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Class A Common Stock [Member]	Class B Common Stock [Member]	Retained Earnings [Member]	Retained Earnings [Member] Class A Common Stock [Member]	Retained Earnings [Member] Class B Common Stock [Member]	Accumulated Other Comprehensive Income [Member]	Common Stock [Member] Class A Common Stock [Member]	Common Stock [Member] Class B Common Stock [Member]	Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of adoption of ASU \| ASU 2014-09 [Member]	$ 3,497			$ 3,497
Balance at beginning of period at Dec. 31, 2017	157,960			147,807			$ (19,625)	$ 217	$ 986	$ 28,575
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	(1,303)	$ (240)	$ (1,063)	(1,303)
Dividends declared		(130)	(700)		$ (130)	$ (700)
Forfeiture of restricted common stock	0								(1)	1
Foreign currency translation adjustment, net of taxes	4,017						4,017
Unrealized holding losses on marketable securities arising during the year, net of taxes	(31)						(31)
Stock-based compensation expense	779									779
Change in unfunded SERP liability, net of taxes	86						86
Balance at end of period at Mar. 31, 2018	164,175			149,171			(15,553)	217	985	29,355
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of adoption of ASU \| ASU 2018-02 [Member]	0			463			(463)
Balance at beginning of period at Dec. 31, 2018	176,470			168,695			(24,838)	217	1,009	31,387
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings (loss)	1,131	180	951	1,131
Dividends declared		$ (130)	$ (708)		$ (130)	$ (708)
Forfeiture of restricted common stock	0								(1)	1
Foreign currency translation adjustment, net of taxes	540						540
Unrealized holding losses on marketable securities arising during the year, net of taxes	0
Stock-based compensation expense	813									813
Change in unfunded SERP liability, net of taxes	37						37
Balance at end of period at Mar. 31, 2019	$ 178,153			$ 169,451			(24,724)	$ 217	$ 1,008	$ 32,201
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of adoption of ASU \| ASU 2018-02 [Member]							$ (463)

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Foreign currency translation adjustment, tax expense	$ 17	$ 25
Unrealized holding losses on marketable securities arising during the period, tax (benefit)	0	20
Change in unfunded SERP liability, tax	$ (11)	$ (25)
Class A Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.06	$ 0.06
Class B Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends declared (in dollars per share)	$ 0.07	$ 0.07

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net earnings (loss)	$ 1,131	$ (1,303)
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	4,110	4,776
Stock-based compensation	813	779
Amortization of deferred financing costs	115	120
Deferred income taxes	(756)	(505)
Net unrealized losses on foreign currency revaluation	573	1,002
Other, net	950	518
Changes in operating assets and liabilities:
Accounts receivable	(2,285)	2,528
Unbilled receivables	5,569	893
Inventories	(4,239)	(4,734)
Account payable	(8,493)	(777)
Accrued expenses	(5,044)	(3,616)
Other operating assets/liabilities, net	1,299	645
Net cash (used in) provided by operating activities	(6,257)	326
Cash flows from investing activities:
Purchases of property, plant and equipment	(2,437)	(2,216)
Proceeds from disposal/sale of property, plant and equipment	2	48
Net cash used in investing activities	(2,435)	(2,168)
Cash flows from financing activities:
Dividends paid to common stockholders	(800)	(791)
Borrowings under revolving credit line	10,000	0
Repayments of revolving credit line	(10,000)	0
Repayments of long-term debt	(744)	(781)
Net cash used in financing activities	(1,544)	(1,572)
Effect of exchange rate changes on cash and cash equivalents	(484)	912
Net decrease in cash and cash equivalents	(10,720)	(2,502)
Cash and cash equivalents - beginning of period	53,911	69,354
Cash and cash equivalents - end of period	43,191	66,852
Cash paid during the period for:
Income taxes, net of refunds received	926	1,040
Interest payment	$ 1,216	$ 1,079

BASIS OF PRESENTATION AND ACCOUNTING POLICIES

3 Months Ended

Mar. 31, 2019

BASIS OF PRESENTATION AND ACCOUNTING POLICIES [Abstract]

BASIS OF PRESENTATION AND ACCOUNTING POLICIES

1.	BASIS OF PRESENTATION AND ACCOUNTING POLICIES

The condensed consolidated balance sheets, statements of operations, comprehensive income, stockholders' equity and cash flows for the periods presented herein have been prepared by the Company and are unaudited. In the opinion of management, all adjustments (consisting solely of normal recurring adjustments) necessary to present fairly the consolidated financial position, results of operations and cash flows for all periods presented have been made. The results for the three months ended March 31, 2019 are not necessarily indicative of the results to be expected for the full year. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and footnotes thereto included in the Bel Fuse Annual Report on Form 10-K for the year ended December 31, 2018.

Certain information and footnote disclosures required under accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted from the following condensed consolidated financial statements pursuant to the rules and regulations, including the interim reporting requirements, of the U.S. Securities and Exchange Commission ("SEC"). The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts and the disclosure of contingent amounts in our condensed consolidated financial statements and accompanying notes. Actual results could differ from these estimates.

The Company’s significant accounting policies are summarized in Note 1 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. There were no significant changes to these accounting policies during the three months ended March 31, 2019, except as discussed in Note 12, Leases, related to the adoption of the new lease standard.

All amounts included in the tables to these notes to condensed consolidated financial statements, except per share amounts, are in thousands.

Recently Adopted Accounting Standards

In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2016-02, Leases (Topic 842) (“ASU 2016-02”), to provide a new comprehensive model for lease accounting. Under this guidance, lessees and lessors should apply a “right-of-use” model in accounting for all leases (including subleases) and eliminate the concept of operating leases and off-balance sheet leases. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. Similar modifications have been made to lessor accounting in-line with revenue recognition guidance. This guidance was effective for annual periods and interim periods within those annual periods beginning after December 15, 2018. The amendments also require certain quantitative and qualitative disclosures about leasing arrangements.

The Company adopted ASU 2016-02 as amended effective January 1, 2019 using the modified retrospective approach. In connection with the adoption, we elected to utilize the Comparatives Under 840 Option whereby the Company will continue to present prior period financial statements and disclosures under ASC 840. In addition, we elected the transition package of three practical expedients permitted within the standard, which eliminates the requirements to reassess prior conclusions about lease identification, lease classification and initial direct costs. Further, we elected a short-term lease exception policy, permitting us to not apply the recognition requirements of this standard to short-term leases (i.e. leases with terms of 12 months or less) and an accounting policy to account for lease and non-lease components as a single component for certain classes of assets. We implemented a new lease system to facilitate the requirements of the new standard and completed the necessary changes to our accounting policies, processes, disclosures and internal control over financial reporting.

Adoption of the new standard resulted in the recording of right-of-use assets in the amount of $20.7 million and lease liabilities related to our operating leases in the amount of $21.0 million on our consolidated balance sheet as of January 1, 2019. The standard did not materially affect the Company’s consolidated net earnings or have any impact on cash flows. See Note 12, Leases, for Topic 842 disclosures in connection with the adoption of ASU 2016-02.

In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This guidance allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the U.S. Tax Cuts and Jobs Act, which was enacted on December 22, 2017. This guidance is effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years and should be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the U.S. federal corporate income tax rate in the U.S. Tax Cuts and Jobs Act is recognized. This guidance was adopted by the Company effective January 1, 2019. In accordance with this guidance, the Company reclassified $0.5 million of stranded tax effects from accumulated other comprehensive income to retained earnings within the equity section of the condensed consolidated balance sheet as of January 1, 2019. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements.

In May 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which simplifies the accounting for share-based payments granted to nonemployees for goods and services. This guidance will better align the treatment of share-based payments to nonemployees with the requirements for such share-based payments granted to employees. This guidance is effective for all public entities for fiscal years beginning after December 15, 2018, including interim periods within that year. This guidance was adopted by the Company effective January 1, 2019 and did not have a material impact on the Company’s condensed consolidated financial statements.

Accounting Standards Issued But Not Yet Adopted

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). The new guidance will broaden the information that an entity must consider in developing its expected credit loss estimates related to its financial instruments, and adds to U.S. GAAP an impairment model that is based on expected losses rather than incurred losses. The amendment is effective for public entities for annual reporting periods beginning after December 15, 2019, with early adoption permitted. Management is currently assessing the impact ASU 2016-13 will have on the Company, but it is not expected to have a material impact on the Company’s condensed consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Early adoption is permitted for interim and annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is required to adopt ASU 2017-04 for its annual or any interim goodwill impairment tests for annual periods beginning after December 15, 2019, and the guidance is to be applied on a prospective basis.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement. The updated guidance improves the disclosure requirements on fair value measurements. The updated guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted for any removed or modified disclosures. The Company is currently assessing the timing and impact of adopting the updated provisions.

In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans (“ASU 2018-14”). This guidance removes certain disclosures that are not considered cost beneficial, clarifies certain required disclosures and added additional disclosures. The standard is effective for fiscal years ending after December 15, 2020. The amendments in ASU 2018-14 would need to be applied on a retrospective basis. We are currently assessing the impact the new guidance will have on our disclosures.

In August 2018, the FASB issued ASU 2018-15, Intangibles – Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Cost. This guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, and early adoption is permitted. The Company is currently evaluating the impacts that adoption of this ASU will have on its consolidated financial statements.

REVENUE

3 Months Ended

Mar. 31, 2019

REVENUE [Abstract]

REVENUE

The following table provides information about disaggregated revenue by product group and sales channel, and includes a reconciliation of the disaggregated revenue to our reportable segments:

	Three Months Ended March 31, 2019
	North
	America		Asia		Europe		Consolidated

By Product Group:
Connectivity solutions	$	32,121	$	3,475	$	8,765	$	44,361
Magnetic solutions		8,945		27,090		2,221		38,256
Power solutions and protection		23,521		6,712		12,539		42,772
	$	64,587	$	37,277	$	23,525	$	125,389

By Sales Channel:
Direct to customer	$	43,881	$	31,128	$	16,213	$	91,222
Through distribution		20,706		6,149		7,312		34,167
	$	64,587	$	37,277	$	23,525	$	125,389

	Three Months Ended March 31, 2018
	North
	America		Asia		Europe		Consolidated

By Product Group:
Connectivity solutions	$	31,046	$	3,420	$	8,453	$	42,919
Magnetic solutions		8,051		27,825		2,352		38,228
Power solutions and protection		20,360		7,375		9,369		37,104
	$	59,457	$	38,620	$	20,174	$	118,251

By Sales Channel:
Direct to customer	$	37,897	$	32,927	$	14,193	$	85,017
Through distribution		21,560		5,693		5,981		33,234
	$	59,457	$	38,620	$	20,174	$	118,251

The balances of the Company’s contract assets and contract liabilities at March 31, 2019 and December 31, 2018 are as follows:

	March 31,		December 31,
	2019		2018

Contract assets - current (unbilled receivable)	$	10,230	$	15,799
Contract liabilities - current (deferred revenue)	$	955	$	1,036

The change in balance of our unbilled receivables from December 31, 2018 to March 31, 2019 primarily relates to a timing difference between the Company’s performance (i.e. when our product is shipped to a customer-controlled hub) and the point at which the Company can invoice the customer per the terms of the customer contract (i.e. when the customer pulls our product from the customer-controlled hub).

The aggregate amount of transaction price allocated to remaining performance obligations that have not been satisfied as of March 31, 2019 related to contracts that exceed one year in duration amounted to $16.0 million, with expected contract expiration dates that range from 2020 - 2025. It is expected that 47% of this aggregate amount will be recognized in 2020, 48% will be recognized in 2021 and the remainder will be recognized in years beyond 2021.

EARNINGS (LOSS) PER SHARE

3 Months Ended

Mar. 31, 2019

EARNINGS (LOSS) PER SHARE [Abstract]

EARNINGS (LOSS) PER SHARE

3.	EARNINGS (LOSS) PER SHARE

The following table sets forth the calculation of basic and diluted net earnings (loss) per common share under the two-class method for the three months ended March 31, 2019 and 2018:

	Three Months Ended
	March 31,
	2019		2018

Numerator:
Net earnings (loss)	$	1,131	$	(1,303	)
Less dividends declared:
Class A		130		130
Class B		708		700
Undistributed earnings (loss)	$	293	$	(2,133	)

Undistributed earnings (loss) allocation - basic and diluted:
Class A undistributed earnings (loss)	$	50	$	(370	)
Class B undistributed earnings (loss)		243		(1,763	)
Total undistributed earnings (loss)	$	293	$	(2,133	)

Net earnings (loss) allocation - basic and diluted:
Class A net earnings (loss)	$	180	$	(240	)
Class B net earnings (loss)		951		(1,063	)
Net earnings (loss)	$	1,131	$	(1,303	)

Denominator:
Weighted-average shares outstanding:
Class A - basic and diluted		2,175		2,175
Class B - basic and diluted		10,089		9,856

Net earnings (loss) per share:
Class A - basic and diluted	$	0.08	$	(0.11	)
Class B - basic and diluted	$	0.09	$	(0.11	)

FAIR VALUE MEASUREMENTS	3 Months Ended
FAIR VALUE MEASUREMENTS	Mar. 31, 2019
FAIR VALUE MEASUREMENTS [Abstract]
FAIR VALUE MEASUREMENTS	4. FAIR VALUE MEASUREMENTS Fair value is defined as an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants based upon the best use of the asset or liability at the measurement date. Entities are required to use a fair value hierarchy which maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. There are three levels of inputs that may be used to measure fair value: Level 1 – Observable inputs such as quoted market prices in active markets; Level 2 – Inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3 – Unobservable inputs about which little or no market data exists, therefore requiring an entity to develop its own assumptions. As of March 31, 2019 and December 31, 2018, our available-for-sale securities primarily consisted of investments held in a rabbi trust which are intended to fund the Company’s Supplemental Executive Retirement Plan (“SERP”) obligations. These securities are measured at fair value using quoted prices in active markets for identical assets (Level 1) inputs and amounted to $1.3 million at March 31, 2019 and $1.4 million at December 31, 2018. The Company does not have any financial assets measured at fair value on a recurring basis categorized as Level 3, and there were no transfers in or out of Level 1, Level 2 or Level 3 during the three months ended March 31, 2019 or March 31, 2018. There were no changes to the Company’s valuation techniques used to measure asset fair values on a recurring or nonrecurring basis during the three months ended March 31, 2019 or March 31, 2018. There were no financial assets accounted for at fair value on a nonrecurring basis as of March 31, 2019 or December 31, 2018. The Company has other financial instruments, such as cash and cash equivalents, accounts receivable, restricted cash, accounts payable, accrued expenses and notes payable, which are not measured at fair value on a recurring basis but are recorded at amounts that approximate fair value due to their liquid or short-term nature. The fair value of the Company’s long-term debt is estimated using a discounted cash flow method based on interest rates that are currently available for debt issuances with similar terms and maturities. At March 31, 2019 and December 31, 2018, the estimated fair value of total debt was $118.0 million and $117.9 million, respectively, compared to a carrying amount of $113.6 million and $114.2 million, respectively. The Company did not have any other financial liabilities within the scope of the fair value disclosure requirements as of March 31, 2019. Nonfinancial assets and liabilities, such as goodwill, indefinite-lived intangible assets and long-lived assets, are accounted for at fair value on a nonrecurring basis. These items are tested for impairment upon the occurrence of a triggering event or in the case of goodwill, on at least an annual basis. There were no triggering events that occurred during the three months ended March 31, 2019 that would warrant interim impairment testing.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

INVENTORIES

3 Months Ended

Mar. 31, 2019

INVENTORIES [Abstract]

INVENTORIES

5. INVENTORIES

The components of inventories are as follows:

	March 31,		December 31,
	2019		2018
Raw materials	$	58,425	$	63,348
Work in progress		27,261		21,441
Finished goods		39,099		35,279
Inventories	$	124,785	$	120,068

PROPERTY, PLANT AND EQUIPMENT

3 Months Ended

Mar. 31, 2019

PROPERTY, PLANT AND EQUIPMENT [Abstract]

PROPERTY, PLANT AND EQUIPMENT

6.	PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following:

	March 31,			December 31,
	2019			2018
Land	$	1,430		$	2,251
Buildings and improvements		29,300			30,119
Machinery and equipment		127,488			126,747
Construction in progress		5,237			4,687
		163,455			163,804
Accumulated depreciation		(121,591	)		(119,872	)
Property, plant and equipment, net	$	41,864		$	43,932

Depreciation expense for the three months ended March 31, 2019 and 2018 was $2.5 million and $3.2 million, respectively. Depreciation expense related to our manufacturing facilities and equipment is included in cost of sales and depreciation expense associated with administrative facilities and office equipment is included in selling, general and administrative expense within the accompanying condensed consolidated statements of operations.

Asset Held for Sale

During the first quarter of 2019, the Company finalized its plans to transition its manufacturing and warehousing operations from its Inwood, New York facility to Bel’s existing facilities in Glen Rock, Pennsylvania and the Dominican Republic. In connection with this transition, the Company has classified $1.5 million of property, plant and equipment as held for sale on the accompanying condensed consolidated balance sheet at March 31, 2019. The Company expects the transition to be complete by the end of the third quarter of 2019.

ACCRUED EXPENSES

3 Months Ended

Mar. 31, 2019

ACCRUED EXPENSES [Abstract]

ACCRUED EXPENSES

7.	ACCRUED EXPENSES

Accrued expenses consist of the following:

	March 31,		December 31,
	2019		2018
Sales commissions	$	2,600	$	2,609
Subcontracting labor		1,520		1,550
Salaries, bonuses and related benefits		13,479		18,275
Warranty accrual		1,116		1,078
Other		8,503		8,778
	$	27,218	$	32,290

The change in warranty accrual during the three months ended March 31, 2019 primarily related to repair costs incurred and adjustments to pre-existing warranties. There were no new material warranty charges incurred during the three months ended March 31, 2019.

Restructuring Activities

Included within other accrued expenses in the table above are costs accrued related to the Company’s restructuring activities. Activity and liability balances related to restructuring costs for the three months ended March 31, 2019 are as follows:

			Three Months Ended
			March 31, 2019
	Liability at				Cash Payments			Liability at
	December 31,		New		and Other			March 31,
	2018		Charges		Settlements			2019
Severance costs	$	-	$	207	$	(63	)	$	144
Other restructuring costs		-		740		-			740
Total	$	-	$	947	$	(63	)	$	884

During the three months ended March 31, 2019, the Company’s restructuring charges included $0.8 million of costs associated with the Company’s decision to transition manufacturing and warehousing operations from our Inwood, New York facility to other existing Bel facilities. The balance of the restructuring charges related to the realignment of our R&D resources dedicated to our Power Solutions and Protection group.

DEBT

3 Months Ended

Mar. 31, 2019

DEBT [Abstract]

DEBT

The Company has a Credit and Security Agreement with KeyBank National Association (as amended, the “CSA”). The CSA consists of (i) a term loan, with outstanding borrowings of $115.2 million and $116.0 million at March 31, 2019 and December 31, 2018, respectively and (ii) a $75 million revolving credit facility (“Revolver”), with no outstanding borrowings at March 31, 2019 or December 31, 2018. The CSA has a maturity date of December 11, 2022. At March 31, 2019 and December 31, 2018, the carrying value of the debt on the condensed consolidated balance sheet is reflected net of $1.7 million and $1.8 million, respectively, of deferred financing costs. During the three months ended March 31, 2019, the Company borrowed $10.0 million from its revolver, all of which was repaid by March 31, 2019.

The weighted-average interest rate in effect was 4.25% at March 31, 2019 and 4.31% at December 31, 2018 and consisted of LIBOR plus the Company’s credit spread, as determined per the terms of the CSA. The Company incurred $1.4 million and $1.2 million of interest expense during the three months ended March 31, 2019 and March 31, 2018, respectively.

The CSA contains customary representations and warranties, covenants and events of default and financial covenants that measure (i) the ratio of the Company's total funded indebtedness, on a consolidated basis, to the amount of the Company’s consolidated EBITDA, as defined, (“Leverage Ratio”) and (ii) the ratio of the amount of the Company’s consolidated EBITDA to the Company’s consolidated fixed charges. If an event of default occurs, the lenders under the CSA would be entitled to take various actions, including the acceleration of amounts due thereunder and all actions permitted to be taken by a secured creditor. At March 31, 2019, the Company was in compliance with its debt covenants, including its most restrictive covenant, the Fixed Charge Coverage Ratio.

INCOME TAXES	3 Months Ended
INCOME TAXES	Mar. 31, 2019
INCOME TAXES [Abstract]
INCOME TAXES	9. INCOME TAXES The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. The Company is no longer subject to U.S. federal examinations by tax authorities for years before 2015 and for state examinations before 2012. Regarding foreign subsidiaries, the Company is no longer subject to examination by tax authorities for years before 2008 in Asia and generally 2010 in Europe. The Company is currently under examination by the taxing authorities in Slovakia for the tax year 2014. As a result of the expiration of the statutes of limitations for specific jurisdictions, it is reasonably possible that the related unrecognized benefits for tax positions taken regarding previously filed tax returns may change materially from those recorded as liabilities for uncertain tax positions in the Company’s consolidated financial statements at March 31, 2019. The Company’s liabilities for uncertain tax positions totaled $29.4 million and $28.9 million at March 31, 2019 and December 31, 2018, respectively, of which $1.1 million and $1.4 million is included in other current liabilities at March 31, 2019 and December 31, 2018, respectively. These amounts, if recognized, would reduce the Company’s effective tax rate. As of March 31, 2019, approximately $1.1 million of the Company’s liabilities for uncertain tax positions are expected to be resolved during 2019 by way of expiration of the related statute of limitations. The Company’s policy is to recognize interest and penalties related to uncertain tax positions as a component of the current provision for income taxes. During the three months ended March 31, 2019 and 2018, the Company recognized $0.2 million in interest and penalties in the condensed consolidated statements of operations during each period. During the three months ended March 31, 2019 and 2018, the Company recognized a benefit of $0.3 million and zero, for the reversal of such interest and penalties, relating to the settlement of the liability for uncertain tax positions, respectively. The Company has approximately $4.8 million and $3.8 million accrued for the payment of interest and penalties at March 31, 2019 and December 31, 2018, respectively, which is included in both income taxes payable and liability for uncertain tax positions in the condensed consolidated balance sheets. The Company continues to monitor the impacts of the U.S. tax reform and supplementary guidance as it becomes available. At December 31, 2018, the remaining balance of the deemed repatriation tax was included in other current liabilities on the Company’s condensed consolidated balance sheet. At March 31, 2019, the majority of the deemed repatriation tax is included in other long-term liabilities on the Company's condensed consolidated balance sheet due to clarification of an Internal Revenue Service notice received in December 2018.

RETIREMENT FUND AND PROFIT SHARING PLAN

3 Months Ended

Mar. 31, 2019

RETIREMENT FUND AND PROFIT SHARING PLAN [Abstract]

RETIREMENT FUND AND PROFIT SHARING PLAN

10. RETIREMENT FUND AND PROFIT SHARING PLAN

The Company maintains the Bel Fuse Inc. Employees’ Savings Plan, a defined contribution plan that is intended to meet the applicable requirements for tax-qualification under sections 401(a) and (k) of the Internal Revenue Code of 1986, as amended (the “Code”). The expense for the three months ended March 31, 2019 and 2018 amounted to $0.3 million in both periods. The Company’s matching contribution is made in the form of Bel Fuse Inc. Class A common stock. As of March 31, 2019, the plan owned 121,261 and 122,056 shares of Bel Fuse Inc. Class A and Class B common stock, respectively.

The Company's subsidiaries in Asia have a retirement fund covering substantially all of their Hong Kong based full-time employees. The expense for the three months ended March 31, 2019 and 2018 amounted to approximately $0.1 million in both periods. As of March 31, 2019, the plan owned 3,323 and 17,342 shares of Bel Fuse Inc. Class A and Class B common stock, respectively.

The Company maintains a SERP, which is designed to provide a limited group of key management and other key employees of the Company with supplemental retirement and death benefits. As discussed in Note 3 above, the Company has investments in a rabbi trust which are intended to fund the obligations of the SERP.

The components of SERP expense are as follows:

	Three Months Ended
	March 31,
	2019		2018
Service cost	$	144	$	183
Interest cost		185		166
Net amortization		48		111
Net periodic benefit cost	$	377	$	460

The service cost component of net benefit cost is presented within cost of sales or selling, general and administrative expense on the accompanying condensed consolidated statements of operations, in accordance with where compensation cost for the related associate is reported. All other components of net benefit cost, including interest cost and net amortization noted above, are presented within other income/expense, net in the accompanying condensed consolidated statements of operations.

The following amounts are recognized net of tax in accumulated other comprehensive loss:

	March 31,		December 31,
	2019		2018
Prior service cost	$	873	$	918
Net loss		1,974		1,977
	$	2,847	$	2,895

ACCUMULATED OTHER COMPREHENSIVE LOSS

3 Months Ended

Mar. 31, 2019

ACCUMULATED OTHER COMPREHENSIVE LOSS [Abstract]

ACCUMULATED OTHER COMPREHENSIVE LOSS

11. ACCUMULATED OTHER COMPREHENSIVE LOSS

The components of accumulated other comprehensive loss at March 31, 2019 and December 31, 2018 are summarized below:

	March 31,			December 31,
	2019			2018

Foreign currency translation adjustment, net of taxes of ($768) at
March 31, 2019 and ($751) at December 31, 2018	$	(22,095	)	$	(22,635	)
Unrealized holding gains on available-for-sale securities, net of taxes of
$0 at March 31, 2019 and $0 at December 31, 2018		12			12
Unfunded SERP liability, net of taxes of ($206) at March 31, 2019
and ($680) at December 31, 2018		(2,641	)		(2,215	)

Accumulated other comprehensive loss	$	(24,724	)	$	(24,838	)

Changes in accumulated other comprehensive loss by component during the three months ended March 31, 2019 are as follows. All amounts are net of tax.

				Unrealized Holding
	Foreign Currency			Gains on
	Translation			Available-for-		Unfunded
	Adjustment			Sale Securities		SERP Liability				Total

Balance at January 1, 2019	$	(22,635	)	$	12	$	(2,215	)		$	(24,838	)
Other comprehensive income before reclassifications		540			-		6				546
Amount reclassified from accumulated other
comprehensive loss		-			-		31		(a)		31
Net current period other comprehensive income		540			-		37				577

Effect of adoption of ASU 2018-02 (Topic 220)		-			-		(463	)			(463	)
Balance at March 31, 2019	$	(22,095	)	$	12	$	(2,641	)		$	(24,724	)

(a) This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP plan.
This expense is allocated between cost of sales and selling, general and administrative expense based upon the employment classification of the plan participants.

LEASES

3 Months Ended

Mar. 31, 2019

LEASES [Abstract]

LEASES

12. LEASES

The Company has operating leases for its facilities used for manufacturing, research and development, sales and administration. There are also operating and finance leases related to manufacturing equipment, office equipment and vehicles. These leases have remaining lease terms ranging from 1 year to 8 years. Certain of the leases contain options to extend the term of the lease and certain of the leases contain options to terminate the lease within a specified period of time. These options to extend or terminate a lease are included in the lease term only when it is reasonably likely that the Company will elect that option. The Company is not a party to any material sublease arrangements.

The components of lease expense, which are included in cost of sales and selling, general and administrative expense, based on the underlying use of the ROU asset, were as follows:

	Three Months Ended March 31, 2019
Amortization of ROU Assets - Finance Leases	$	34
Interest on Lease Liabilities - Finance Leases		13
Operating Lease Cost (Cost resulting from lease payments)		1,980
Short-term Lease Cost		68
Variable Lease Cost (Cost excluded from lease payments)		59
Sublease Income		-
Total Lease Cost	$	2,154

Supplemental cash flow information related to leases are as follows:

	Three Months Ended March 31, 2019
Cash paid for amounts included in the measruement of lease liabilities:
Operating cash flows from operating leases	$	2,024
Operating cash flows from finance leases		13
Finance cash flows from finance leases		29
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		20,775
Finance leases		-

Supplemental balance sheet information related to leases was as follows:

	March 31, 2019
Operating Leases:
Operating lease right-of-use assets	$	19,022
Other current liabilities		6,243
Operating lease liabilities		13,044
Total operating lease liabilities		19,287

Finance Leases:
Property, plant and equipment, gross	$	881
Accumulated depreciation		(168	)
Property, plant and equipment, net		713
Other current liabilities		118
Other long-term liabilities		654
Total finance lease liabilities	$	772

	March 31, 2019
Weighted-Average Remaining Lease Term:
Operating leases	3.5 years
Finance leases	5.7 years

Weighted-Average Discount Rate:
Operating leases		6.0	%
Finance leases		6.5	%

Our discount rate is based on our incremental borrowing rate, as adjusted based on the geographic regions in which our leases assets are located.

Maturities of lease liabilities were as follows as of March 31, 2019:

Year Ending	Operating			Finance
March 31,	Leases			Leases
2020	$	7,170		$	164
2021		5,746			163
2022		4,564			162
2023		2,900			162
2024		700			162
Thereafter		329			108
Total undiscounted cash flows		21,409			921
Less imputed interest		(2,122	)		(149	)
Present value of lease liabilities	$	19,287		$	772

As of March 31, 2019, the Company did not have any additional operating or financing leases that have not yet commenced.

COMMITMENTS AND CONTINGENCIES	3 Months Ended
COMMITMENTS AND CONTINGENCIES	Mar. 31, 2019
COMMITMENTS AND CONTINGENCIES [Abstract]
COMMITMENTS AND CONTINGENCIES	13. COMMITMENTS AND CONTINGENCIES Legal Proceedings The Company is party to a number of legal actions and claims, none of which individually or in the aggregate, in the opinion of management, are expected to have a material adverse effect on the Company’s consolidated results of operations or financial position. In connection with the acquisition of Power Solutions, there is an ongoing claim by the Arezzo Revenue Agency in Italy concerning certain tax matters related to what was then Power-One Asia Pacific Electronics Shenzhen Co. Ltd. (now Bel Power Solutions Asia Pacific Electronics Shenzhen Co. Ltd, or “BPS China”) for the years 2004 to 2006. In September 2012, the Tax Court of Arezzo ruled in favor of BPS China and cancelled the claim. In February 2013, the Arezzo Revenue Agency filed an appeal of the Tax Court’s ruling. The hearing of the appeal was held on October 2, 2014. On October 13, 2014, BPS China was informed of the Regional Tax Commission of Florence ruling which was in favor of the Arezzo Revenue Agency and against BPS China. An appeal was filed on July 18, 2015 before the Regional Tax Commission of Florence and rejected. On December 5, 2016, the Arezzo Revenue Agency filed an appeal with the Supreme Court and BPS China filed a counter-appeal on January 4, 2017. The Supreme Court has yet to render its judgment. The estimated liability related to this matter is approximately $12.0 million and has been included as a liability for uncertain tax positions on the accompanying condensed consolidated balance sheets. As Bel is fully indemnified in this matter per the terms of the stock purchase agreement with ABB, a corresponding other asset for indemnification is also included in other assets on the accompanying condensed consolidated balance sheets at March 31, 2019 and December 31, 2018. On June 1, 2018, the Company filed an action against Unipower, LLC in the United States District Court for the Southern District of New York for breach of contract. Specifically, the Company alleges in its Complaint that Unipower has willfully violated the Master Services Agreement (“MSA”) entered into by the parties on January 23, 2015 by failing to make payment for the products it contracted for under the MSA. The parties entered into a settlement agreement on December 17, 2018 resolving all outstanding claims and a Stipulation of Dismissal was filed and entered on January 10, 2019. The Company is not a party to any other legal proceeding, the adverse outcome of which is likely to have a material adverse effect on the Company's consolidated financial condition or results of operations.

SEGMENTS

3 Months Ended

Mar. 31, 2019

SEGMENTS [Abstract]

SEGMENTS

14. SEGMENTS

The Company operates in one industry with three reportable operating segments, which are geographic in nature. The segments consist of North America, Asia and Europe. The primary criteria by which financial performance is evaluated and resources are allocated are net sales and income (loss) from operations. The following is a summary of key financial data:

	Three Months Ended
	March 31,
	2019			2018
Net Sales to External Customers:
North America	$	64,587		$	59,457
Asia		37,277			38,620
Europe		23,525			20,174
	$	125,389		$	118,251

Net Sales:
North America	$	67,474		$	62,570
Asia		62,309			56,139
Europe		26,864			24,312
Less intercompany net sales		(31,258	)		(24,770	)
	$	125,389		$	118,251

Income (Loss) from Operations:
North America	$	(493	)	$	(302	)
Asia		1,014			(85	)
Europe		2,295			824
	$	2,816		$	437

Net Sales – Segment net sales are attributed to individual segments based on the geographic source of the billing for such customer sales. Intercompany sales include finished products manufactured in foreign countries which are then transferred to the United States and Europe for sale; finished goods manufactured in the United States which are transferred to Europe and Asia for sale; and semi-finished components manufactured in the United States which are sold to Asia for further processing.

Income (loss) from operations represents net sales less operating costs and expenses and does not include any amounts related to intercompany transactions.

BASIS OF PRESENTATION AND ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2019
BASIS OF PRESENTATION AND ACCOUNTING POLICIES [Abstract]
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update ("ASU") 2016-02, Leases (Topic 842) (“ASU 2016-02”), to provide a new comprehensive model for lease accounting. Under this guidance, lessees and lessors should apply a “right-of-use” model in accounting for all leases (including subleases) and eliminate the concept of operating leases and off-balance sheet leases. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. Similar modifications have been made to lessor accounting in-line with revenue recognition guidance. This guidance was effective for annual periods and interim periods within those annual periods beginning after December 15, 2018. The amendments also require certain quantitative and qualitative disclosures about leasing arrangements. The Company adopted ASU 2016-02 as amended effective January 1, 2019 using the modified retrospective approach. In connection with the adoption, we elected to utilize the Comparatives Under 840 Option whereby the Company will continue to present prior period financial statements and disclosures under ASC 840. In addition, we elected the transition package of three practical expedients permitted within the standard, which eliminates the requirements to reassess prior conclusions about lease identification, lease classification and initial direct costs. Further, we elected a short-term lease exception policy, permitting us to not apply the recognition requirements of this standard to short-term leases (i.e. leases with terms of 12 months or less) and an accounting policy to account for lease and non-lease components as a single component for certain classes of assets. We implemented a new lease system to facilitate the requirements of the new standard and completed the necessary changes to our accounting policies, processes, disclosures and internal control over financial reporting. Adoption of the new standard resulted in the recording of right-of-use assets in the amount of $20.7 million and lease liabilities related to our operating leases in the amount of $21.0 million on our consolidated balance sheet as of January 1, 2019. The standard did not materially affect the Company’s consolidated net earnings or have any impact on cash flows. See Note 12, Leases, for Topic 842 disclosures in connection with the adoption of ASU 2016-02. In February 2018, the FASB issued ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This guidance allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the U.S. Tax Cuts and Jobs Act, which was enacted on December 22, 2017. This guidance is effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years and should be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the U.S. federal corporate income tax rate in the U.S. Tax Cuts and Jobs Act is recognized. This guidance was adopted by the Company effective January 1, 2019. In accordance with this guidance, the Company reclassified $0.5 million of stranded tax effects from accumulated other comprehensive income to retained earnings within the equity section of the condensed consolidated balance sheet as of January 1, 2019. The adoption of this guidance did not have a material impact on the Company’s condensed consolidated financial statements. In May 2018, the FASB issued ASU 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting, which simplifies the accounting for share-based payments granted to nonemployees for goods and services. This guidance will better align the treatment of share-based payments to nonemployees with the requirements for such share-based payments granted to employees. This guidance is effective for all public entities for fiscal years beginning after December 15, 2018, including interim periods within that year. This guidance was adopted by the Company effective January 1, 2019 and did not have a material impact on the Company’s condensed consolidated financial statements.
Accounting Standards Issued But Not Yet Adopted	Accounting Standards Issued But Not Yet Adopted In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). The new guidance will broaden the information that an entity must consider in developing its expected credit loss estimates related to its financial instruments, and adds to U.S. GAAP an impairment model that is based on expected losses rather than incurred losses. The amendment is effective for public entities for annual reporting periods beginning after December 15, 2019, with early adoption permitted. Management is currently assessing the impact ASU 2016-13 will have on the Company, but it is not expected to have a material impact on the Company’s condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Early adoption is permitted for interim and annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company is required to adopt ASU 2017-04 for its annual or any interim goodwill impairment tests for annual periods beginning after December 15, 2019, and the guidance is to be applied on a prospective basis. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement. The updated guidance improves the disclosure requirements on fair value measurements. The updated guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted for any removed or modified disclosures. The Company is currently assessing the timing and impact of adopting the updated provisions. In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework – Changes to the Disclosure Requirements for Defined Benefit Plans (“ASU 2018-14”). This guidance removes certain disclosures that are not considered cost beneficial, clarifies certain required disclosures and added additional disclosures. The standard is effective for fiscal years ending after December 15, 2020. The amendments in ASU 2018-14 would need to be applied on a retrospective basis. We are currently assessing the impact the new guidance will have on our disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles – Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Cost. This guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, and early adoption is permitted. The Company is currently evaluating the impacts that adoption of this ASU will have on its consolidated financial statements.

REVENUE (Tables)

3 Months Ended

Mar. 31, 2019

REVENUE [Abstract]

Disaggregation of Revenue

The following table provides information about disaggregated revenue by product group and sales channel, and includes a reconciliation of the disaggregated revenue to our reportable segments:

	Three Months Ended March 31, 2019
	North
	America		Asia		Europe		Consolidated

By Product Group:
Connectivity solutions	$	32,121	$	3,475	$	8,765	$	44,361
Magnetic solutions		8,945		27,090		2,221		38,256
Power solutions and protection		23,521		6,712		12,539		42,772
	$	64,587	$	37,277	$	23,525	$	125,389

By Sales Channel:
Direct to customer	$	43,881	$	31,128	$	16,213	$	91,222
Through distribution		20,706		6,149		7,312		34,167
	$	64,587	$	37,277	$	23,525	$	125,389

	Three Months Ended March 31, 2018
	North
	America		Asia		Europe		Consolidated

By Product Group:
Connectivity solutions	$	31,046	$	3,420	$	8,453	$	42,919
Magnetic solutions		8,051		27,825		2,352		38,228
Power solutions and protection		20,360		7,375		9,369		37,104
	$	59,457	$	38,620	$	20,174	$	118,251

By Sales Channel:
Direct to customer	$	37,897	$	32,927	$	14,193	$	85,017
Through distribution		21,560		5,693		5,981		33,234
	$	59,457	$	38,620	$	20,174	$	118,251

Contract Assets and Contract Liabilities

The balances of the Company’s contract assets and contract liabilities at March 31, 2019 and December 31, 2018 are as follows:

	March 31,		December 31,
	2019		2018

Contract assets - current (unbilled receivable)	$	10,230	$	15,799
Contract liabilities - current (deferred revenue)	$	955	$	1,036

EARNINGS (LOSS) PER SHARE (Tables)

3 Months Ended

Mar. 31, 2019

EARNINGS (LOSS) PER SHARE [Abstract]

Earnings and Weighted Average Shares Outstanding used in Computation of Basic and Diluted Earnings (Loss) Per Share

The following table sets forth the calculation of basic and diluted net earnings (loss) per common share under the two-class method for the three months ended March 31, 2019 and 2018:

	Three Months Ended
	March 31,
	2019		2018

Numerator:
Net earnings (loss)	$	1,131	$	(1,303	)
Less dividends declared:
Class A		130		130
Class B		708		700
Undistributed earnings (loss)	$	293	$	(2,133	)

Undistributed earnings (loss) allocation - basic and diluted:
Class A undistributed earnings (loss)	$	50	$	(370	)
Class B undistributed earnings (loss)		243		(1,763	)
Total undistributed earnings (loss)	$	293	$	(2,133	)

Net earnings (loss) allocation - basic and diluted:
Class A net earnings (loss)	$	180	$	(240	)
Class B net earnings (loss)		951		(1,063	)
Net earnings (loss)	$	1,131	$	(1,303	)

Denominator:
Weighted-average shares outstanding:
Class A - basic and diluted		2,175		2,175
Class B - basic and diluted		10,089		9,856

Net earnings (loss) per share:
Class A - basic and diluted	$	0.08	$	(0.11	)
Class B - basic and diluted	$	0.09	$	(0.11	)

INVENTORIES (Tables)

3 Months Ended

Mar. 31, 2019

INVENTORIES [Abstract]

Components of Inventories

The components of inventories are as follows:

	March 31,		December 31,
	2019		2018
Raw materials	$	58,425	$	63,348
Work in progress		27,261		21,441
Finished goods		39,099		35,279
Inventories	$	124,785	$	120,068

PROPERTY, PLANT AND EQUIPMENT (Tables)

3 Months Ended

Mar. 31, 2019

PROPERTY, PLANT AND EQUIPMENT [Abstract]

Property, Plant and Equipment

Property, plant and equipment consist of the following:

	March 31,			December 31,
	2019			2018
Land	$	1,430		$	2,251
Buildings and improvements		29,300			30,119
Machinery and equipment		127,488			126,747
Construction in progress		5,237			4,687
		163,455			163,804
Accumulated depreciation		(121,591	)		(119,872	)
Property, plant and equipment, net	$	41,864		$	43,932

ACCRUED EXPENSES (Tables)

3 Months Ended

Mar. 31, 2019

ACCRUED EXPENSES [Abstract]

Accrued Expenses

Accrued expenses consist of the following:

	March 31,		December 31,
	2019		2018
Sales commissions	$	2,600	$	2,609
Subcontracting labor		1,520		1,550
Salaries, bonuses and related benefits		13,479		18,275
Warranty accrual		1,116		1,078
Other		8,503		8,778
	$	27,218	$	32,290

Activity and Liability Balances Related to Restructuring Costs

Activity and liability balances related to restructuring costs for the three months ended March 31, 2019 are as follows:

			Three Months Ended
			March 31, 2019
	Liability at				Cash Payments			Liability at
	December 31,		New		and Other			March 31,
	2018		Charges		Settlements			2019
Severance costs	$	-	$	207	$	(63	)	$	144
Other restructuring costs		-		740		-			740
Total	$	-	$	947	$	(63	)	$	884

RETIREMENT FUND AND PROFIT SHARING PLAN (Tables)

3 Months Ended

Mar. 31, 2019

RETIREMENT FUND AND PROFIT SHARING PLAN [Abstract]

SERP Expense

The components of SERP expense are as follows:

	Three Months Ended
	March 31,
	2019		2018
Service cost	$	144	$	183
Interest cost		185		166
Net amortization		48		111
Net periodic benefit cost	$	377	$	460

Gross Amounts Recognized in Accumulated Other Comprehensive Loss, Net of Tax

The following amounts are recognized net of tax in accumulated other comprehensive loss:

	March 31,		December 31,
	2019		2018
Prior service cost	$	873	$	918
Net loss		1,974		1,977
	$	2,847	$	2,895

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

3 Months Ended

Mar. 31, 2019

ACCUMULATED OTHER COMPREHENSIVE LOSS [Abstract]

Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss at March 31, 2019 and December 31, 2018 are summarized below:

	March 31,			December 31,
	2019			2018

Foreign currency translation adjustment, net of taxes of ($768) at
March 31, 2019 and ($751) at December 31, 2018	$	(22,095	)	$	(22,635	)
Unrealized holding gains on available-for-sale securities, net of taxes of
$0 at March 31, 2019 and $0 at December 31, 2018		12			12
Unfunded SERP liability, net of taxes of ($206) at March 31, 2019
and ($680) at December 31, 2018		(2,641	)		(2,215	)

Accumulated other comprehensive loss	$	(24,724	)	$	(24,838	)

Changes in Accumulated Other Comprehensive Loss by Component

Changes in accumulated other comprehensive loss by component during the three months ended March 31, 2019 are as follows. All amounts are net of tax.

				Unrealized Holding
	Foreign Currency			Gains on
	Translation			Available-for-		Unfunded
	Adjustment			Sale Securities		SERP Liability				Total

Balance at January 1, 2019	$	(22,635	)	$	12	$	(2,215	)		$	(24,838	)
Other comprehensive income before reclassifications		540			-		6				546
Amount reclassified from accumulated other
comprehensive loss		-			-		31		(a)		31
Net current period other comprehensive income		540			-		37				577

Effect of adoption of ASU 2018-02 (Topic 220)		-			-		(463	)			(463	)
Balance at March 31, 2019	$	(22,095	)	$	12	$	(2,641	)		$	(24,724	)

(a) This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP plan.
This expense is allocated between cost of sales and selling, general and administrative expense based upon the employment classification of the plan participants.

LEASES (Tables)

3 Months Ended

Mar. 31, 2019

LEASES [Abstract]

Components of Lease Expense

The components of lease expense, which are included in cost of sales and selling, general and administrative expense, based on the underlying use of the ROU asset, were as follows:

	Three Months Ended March 31, 2019
Amortization of ROU Assets - Finance Leases	$	34
Interest on Lease Liabilities - Finance Leases		13
Operating Lease Cost (Cost resulting from lease payments)		1,980
Short-term Lease Cost		68
Variable Lease Cost (Cost excluded from lease payments)		59
Sublease Income		-
Total Lease Cost	$	2,154

Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases are as follows:

	Three Months Ended March 31, 2019
Cash paid for amounts included in the measruement of lease liabilities:
Operating cash flows from operating leases	$	2,024
Operating cash flows from finance leases		13
Finance cash flows from finance leases		29
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		20,775
Finance leases		-

Supplemental Balance Sheet Information Related to Leases

Supplemental balance sheet information related to leases was as follows:

	March 31, 2019
Operating Leases:
Operating lease right-of-use assets	$	19,022
Other current liabilities		6,243
Operating lease liabilities		13,044
Total operating lease liabilities		19,287

Finance Leases:
Property, plant and equipment, gross	$	881
Accumulated depreciation		(168	)
Property, plant and equipment, net		713
Other current liabilities		118
Other long-term liabilities		654
Total finance lease liabilities	$	772

Weighted-Average Remaining Lease Term and Discount Rate

	March 31, 2019
Weighted-Average Remaining Lease Term:
Operating leases	3.5 years
Finance leases	5.7 years

Weighted-Average Discount Rate:
Operating leases		6.0	%
Finance leases		6.5	%

Maturities of Lease Liabilities

Maturities of lease liabilities were as follows as of March 31, 2019:

Year Ending	Operating			Finance
March 31,	Leases			Leases
2020	$	7,170		$	164
2021		5,746			163
2022		4,564			162
2023		2,900			162
2024		700			162
Thereafter		329			108
Total undiscounted cash flows		21,409			921
Less imputed interest		(2,122	)		(149	)
Present value of lease liabilities	$	19,287		$	772

SEGMENTS (Tables)

3 Months Ended

Mar. 31, 2019

SEGMENTS [Abstract]

Key Financial Data

The following is a summary of key financial data:

	Three Months Ended
	March 31,
	2019			2018
Net Sales to External Customers:
North America	$	64,587		$	59,457
Asia		37,277			38,620
Europe		23,525			20,174
	$	125,389		$	118,251

Net Sales:
North America	$	67,474		$	62,570
Asia		62,309			56,139
Europe		26,864			24,312
Less intercompany net sales		(31,258	)		(24,770	)
	$	125,389		$	118,251

Income (Loss) from Operations:
North America	$	(493	)	$	(302	)
Asia		1,014			(85	)
Europe		2,295			824
	$	2,816		$	437

BASIS OF PRESENTATION AND ACCOUNTING POLICIES, Recently Adopted Accounting Standard (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Recently Adopted Accounting Standards [Abstract]
Right-of-use assets	$ 19,022	$ 0
Lease liabilities	19,287
ASU 2016-02 [Member]
Recently Adopted Accounting Standards [Abstract]
Right-of-use assets	20,700
Lease liabilities	21,000
ASU 2018-02 [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income		0
ASU 2018-02 [Member] \| Retained Earnings [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income		463
ASU 2018-02 [Member] \| Accumulated Other Comprehensive Income [Member]
Recently Adopted Accounting Standards [Abstract]
Reclassification of certain tax effects from accumulated other comprehensive income	$ (463)	$ (463)

REVENUE, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Abstract]
Net sales	$ 125,389	$ 118,251
Direct to Customer [Member]
Disaggregation of Revenue [Abstract]
Net sales	91,222	85,017
Through Distribution [Member]
Disaggregation of Revenue [Abstract]
Net sales	34,167	33,234
Connectivity Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	44,361	42,919
Magnetic Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	38,256	38,228
Power Solutions and Protection [Member]
Disaggregation of Revenue [Abstract]
Net sales	42,772	37,104
North America [Member]
Disaggregation of Revenue [Abstract]
Net sales	64,587	59,457
North America [Member] \| Direct to Customer [Member]
Disaggregation of Revenue [Abstract]
Net sales	43,881	37,897
North America [Member] \| Through Distribution [Member]
Disaggregation of Revenue [Abstract]
Net sales	20,706	21,560
North America [Member] \| Connectivity Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	32,121	31,046
North America [Member] \| Magnetic Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	8,945	8,051
North America [Member] \| Power Solutions and Protection [Member]
Disaggregation of Revenue [Abstract]
Net sales	23,521	20,360
Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	37,277	38,620
Asia [Member] \| Direct to Customer [Member]
Disaggregation of Revenue [Abstract]
Net sales	31,128	32,927
Asia [Member] \| Through Distribution [Member]
Disaggregation of Revenue [Abstract]
Net sales	6,149	5,693
Asia [Member] \| Connectivity Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	3,475	3,420
Asia [Member] \| Magnetic Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	27,090	27,825
Asia [Member] \| Power Solutions and Protection [Member]
Disaggregation of Revenue [Abstract]
Net sales	6,712	7,375
Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	23,525	20,174
Europe [Member] \| Direct to Customer [Member]
Disaggregation of Revenue [Abstract]
Net sales	16,213	14,193
Europe [Member] \| Through Distribution [Member]
Disaggregation of Revenue [Abstract]
Net sales	7,312	5,981
Europe [Member] \| Connectivity Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	8,765	8,453
Europe [Member] \| Magnetic Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	2,221	2,352
Europe [Member] \| Power Solutions and Protection [Member]
Disaggregation of Revenue [Abstract]
Net sales	$ 12,539	$ 9,369

REVENUE, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Contract with Customer, Asset and Liability [Abstract]
Contract assets - current (unbilled receivable)	$ 10,230	$ 15,799
Contract liabilities - current (deferred revenue)	$ 955	$ 1,036

REVENUE, Transaction Price Allocated to Future Obligations (Details) $ in Thousands	Mar. 31, 2019 USD ($)
REVENUE [Abstract]
Revenue, remaining performance obligation	$ 16,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Transaction Price Allocated to Future Obligations [Abstract]
Remaining performance obligation percentage	47.00%
Remaining performance satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Transaction Price Allocated to Future Obligations [Abstract]
Remaining performance obligation percentage	48.00%
Remaining performance satisfaction period

EARNINGS (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator [Abstract]
Net earnings (loss)	$ 1,131	$ (1,303)
Undistributed earnings (loss)	293	(2,133)
Class A [Member]
Numerator [Abstract]
Net earnings (loss)	180	(240)
Less dividends declared	130	130
Undistributed earnings (loss)	$ 50	$ (370)
Weighted-average shares outstanding [Abstract]
Basic and diluted (in shares)	2,175	2,175
Net earnings (loss) per share [Abstract]
Basic and diluted (in dollars per share)	$ 0.08	$ (0.11)
Class B [Member]
Numerator [Abstract]
Net earnings (loss)	$ 951	$ (1,063)
Less dividends declared	708	700
Undistributed earnings (loss)	$ 243	$ (1,763)
Weighted-average shares outstanding [Abstract]
Basic and diluted (in shares)	10,089	9,856
Net earnings (loss) per share [Abstract]
Basic and diluted (in dollars per share)	$ 0.09	$ (0.11)

FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Fair Value Measurement [Abstract]
Transfers in (out) between levels	$ 0		$ 0
Fair value of total debt	118,000	$ 117,900
Carrying amount of long-term debt	113,600	114,200
Investments held in Rabbi Trust [Member]
Fair Value Measurement [Abstract]
Securities measured at fair value	1,300	1,400
Nonrecurring [Member]
Fair Value Measurement [Abstract]
Financial assets accounted at fair value	$ 0	$ 0

INVENTORIES (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Components of inventories [Abstract]
Raw materials	$ 58,425	$ 63,348
Work in progress	27,261	21,441
Finished goods	39,099	35,279
Inventories	$ 124,785	$ 120,068

PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	$ 163,455		$ 163,804
Accumulated depreciation	(121,591)		(119,872)
Property, plant and equipment, net	41,864		43,932
Depreciation expense	2,500	$ 3,200
Assets held for sale	1,518		0
Land [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	1,430		2,251
Buildings and Improvements [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	29,300		30,119
Machinery and Equipment [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	127,488		126,747
Construction in Progress [Member]
Property, plant and equipment [Abstract]
Property, plant and equipment, gross	$ 5,237		$ 4,687

ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	3 Months Ended
ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ACCRUED EXPENSES [Abstract]
Sales commissions	$ 2,600	$ 2,609
Subcontracting labor	1,520	1,550
Salaries, bonuses and related benefits	13,479	18,275
Warranty accrual	1,116	1,078
Other	8,503	8,778
Accrued expenses	27,218	$ 32,290
Activity and liability balances related to restructuring costs [Roll Forward]
Liability, beginning balance	0
New charges	947
Cash payment and other settlements	(63)
Liability, ending balance	884
Severance Costs [Member]
Activity and liability balances related to restructuring costs [Roll Forward]
Liability, beginning balance	0
New charges	207
Cash payment and other settlements	(63)
Liability, ending balance	144
Other Restructuring Costs [Member]
Activity and liability balances related to restructuring costs [Roll Forward]
Liability, beginning balance	0
New charges	740
Cash payment and other settlements	0
Liability, ending balance	$ 740

DEBT (Details) - USD ($) $ in Thousands	3 Months Ended
DEBT (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Credit and Security Agreement [Abstract]
Term loan, amount outstanding	$ 113,600		$ 114,200
Deferred finance cost net	1,700		$ 1,800
Borrowings under revolving credit line	10,000	$ 0
Repayments of revolving credit line	$ (10,000)	0
KeyBank [Member]
Credit and Security Agreement [Abstract]
Line of credit facility, maturity date	Dec. 11, 2022
Weighted average interest rate	4.25%		4.31%
Interest expense incurred	$ 1,400	$ 1,200
KeyBank [Member] \| Term Loan [Member]
Credit and Security Agreement [Abstract]
Term loan, amount outstanding	115,200		$ 116,000
KeyBank [Member] \| Revolving Credit Facility [Member]
Credit and Security Agreement [Abstract]
Line of credit, amount outstanding	0		0
Unused borrowing capacity	75,000		$ 75,000
Borrowings under revolving credit line	10,000
Repayments of revolving credit line	$ (10,000)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended
INCOME TAXES (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Taxes Uncertain Tax Positions and Tax Reform [Abstract]
Liability for uncertain tax positions	$ 29,400		$ 28,900
Liability for uncertain tax positions - current	1,100		1,400
Liability for uncertain tax positions - lapse of statute of limitations	(1,100)
Interest and penalties uncertain tax positions recognized	200	$ 200
(Benefit) on reversal of interest and penalties	(300)	$ 0
Accrued interest and penalties uncertain tax positions	$ 4,800		$ 3,800

RETIREMENT FUND AND PROFIT SHARING PLAN, Employees' Savings Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
UNITED STATES \| Class A Common Stock [Member]
Compensation Expense [Abstract]
Shares owned by plan (in shares)	121,261
UNITED STATES \| Class B Common Stock [Member]
Compensation Expense [Abstract]
Shares owned by plan (in shares)	122,056
401K Plan [Member] \| UNITED STATES
Compensation Expense [Abstract]
Compensation expense	$ 0.3	$ 0.3
Retirement Fund [Member] \| HONG KONG
Compensation Expense [Abstract]
Compensation expense	$ 0.1	$ 0.1
Retirement Fund [Member] \| HONG KONG \| Class A Common Stock [Member]
Compensation Expense [Abstract]
Shares owned by plan (in shares)	3,323
Retirement Fund [Member] \| HONG KONG \| Class B Common Stock [Member]
Compensation Expense [Abstract]
Shares owned by plan (in shares)	17,342

RETIREMENT FUND AND PROFIT SHARING PLAN, SERP (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible List]	us-gaap:SupplementalEmployeeRetirementPlanDefinedBenefitMember
SERP [Member]
Components of SERP expense [Abstract]
Service cost	$ 144	$ 183
Interest cost	185	166
Net amortization	48	111
Net periodic benefit cost	377	$ 460
Amounts recognized in accumulated other comprehensive loss, net of tax [Abstract]
Prior service cost	873		$ 918
Net loss	1,974		1,977
Total amounts recognized in accumulated other comprehensive loss	$ 2,847		$ 2,895

ACCUMULATED OTHER COMPREHENSIVE LOSS, Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accumulated other comprehensive loss [Abstract]
Foreign currency translation adjustment, net of taxes	$ (22,095)	$ (22,635)
Unrealized holding gains on available-for-sale securities, net of taxes	12	12
Unfunded SERP liability, net of taxes	(2,641)	(2,215)
Accumulated other comprehensive loss	(24,724)	(24,838)
Accumulated other comprehensive loss, tax [Abstract]
Foreign currency translation adjustment, tax	(768)	(751)
Unrealized holding gains on available-for-sale securities, tax	0	0
Change in unfunded SERP liability, tax	$ (206)	$ (680)

ACCUMULATED OTHER COMPREHENSIVE LOSS, Changes in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2019

Mar. 31, 2018

Dec. 31, 2018

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Balance at beginning of period

$ 176,470

$ 157,960

Other comprehensive income before reclassifications

546

Amount reclassified comprehensive loss from accumulated other

Net current period other comprehensive income

577

4,072

Balance at end of period

178,153

164,175

ASU 2018-02 [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Effect of adoption of ASU 2018-02 (Topic 220)

$ 0

Accumulated Other Comprehensive (Loss) [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Balance at beginning of period

(24,838)

(19,625)

Balance at end of period

(24,724)

$ (15,553)

Accumulated Other Comprehensive (Loss) [Member] | ASU 2018-02 [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Effect of adoption of ASU 2018-02 (Topic 220)

(463)

$ (463)

Foreign Currency Translation Adjustment [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Balance at beginning of period

(22,635)

Other comprehensive income before reclassifications

540

Amount reclassified comprehensive loss from accumulated other

Net current period other comprehensive income

540

Balance at end of period

(22,095)

Foreign Currency Translation Adjustment [Member] | ASU 2018-02 [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Effect of adoption of ASU 2018-02 (Topic 220)

Unrealized Holding Gains on Available-for-Sale Securities [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Balance at beginning of period

Other comprehensive income before reclassifications

Amount reclassified comprehensive loss from accumulated other

Net current period other comprehensive income

Balance at end of period

Unrealized Holding Gains on Available-for-Sale Securities [Member] | ASU 2018-02 [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Effect of adoption of ASU 2018-02 (Topic 220)

Unfunded SERP Liability [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Balance at beginning of period

(2,215)

Other comprehensive income before reclassifications

Amount reclassified comprehensive loss from accumulated other

^[1]

Net current period other comprehensive income

Balance at end of period

(2,641)

Unfunded SERP Liability [Member] | ASU 2018-02 [Member]

Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]

Effect of adoption of ASU 2018-02 (Topic 220)

$ (463)

[1]	This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP plan. This expense is allocated between cost of sales and selling, general and administrative expense based upon the employment classification of the plan participants.

LEASES (Details) - USD ($) $ in Thousands	3 Months Ended
LEASES (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Components of Lease Expense [Abstract]
Amortization of ROU Assets - Finance Leases	$ 34
Interest on Lease Liabilities - Finance Leases	13
Operating Lease Cost (Cost resulting from lease payments)	1,980
Short-term Lease Cost	68
Variable Lease Cost (Cost excluded from lease payments)	59
Sublease Income	0
Total Lease Cost	2,154
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases	2,024
Operating cash flows from finance leases	13
Finance cash flows from finance leases	29
Right-of-use assets obtained in exchange for lease obligations [Abstract]
Operating leases	20,775
Finance leases	0
Operating Leases [Abstract]
Operating lease right-of-use assets	19,022	$ 0
Other current liabilities	6,243	0
Operating lease liabilities	13,044	$ 0
Total operating lease liabilities	19,287
Finance Leases [Abstract]
Property, plant and equipment, gross	881
Accumulated depreciation	(168)
Property, plant and equipment, net	713
Other current liabilities	118
Other long-term liabilities	654
Total finance lease liabilities	$ 772
Weighted-Average Remaining Lease Term [Abstract]
Operating leases	3 years 6 months
Finance leases	5 years 8 months 12 days
Weighted-Average Discount Rate [Abstract]
Operating leases	6.00%
Finance leases	6.50%
Maturities of Operating Lease Liabilities [Abstract]
2020	$ 7,170
2021	5,746
2022	4,564
2023	2,900
2024	700
Thereafter	329
Total undiscounted cash flows	21,409
Less imputed interest	(2,122)
Present value of lease liabilities	19,287
Maturities of Finance Lease Liabilities [Abstract]
2020	164
2021	163
2022	162
2023	162
2024	162
Thereafter	108
Total undiscounted cash flows	921
Less imputed interest	(149)
Present value of lease liabilities	$ 772
Minimum [Member]
Lessee Description [Abstract]
Remaining lease term	1 year
Maximum [Member]
Lessee Description [Abstract]
Remaining lease term	8 years

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Arezzo Revenue Agency [Member]
Legal Proceedings [Abstract]
Estimated liability	$ 12,000

SEGMENTS (Details) $ in Thousands	3 Months Ended
SEGMENTS (Details) $ in Thousands	Mar. 31, 2019 USD ($) Industry Segment	Mar. 31, 2018 USD ($)
SEGMENTS [Abstract]
Number of industry in which entity operates \| Industry	1
Number of reportable operating segments \| Segment	3
Summary of key financial data [Abstract]
Net sales	$ 125,389	$ 118,251
Income (loss) from operations	2,816	437
North America [Member]
Summary of key financial data [Abstract]
Net sales	64,587	59,457
Asia [Member]
Summary of key financial data [Abstract]
Net sales	37,277	38,620
Europe [Member]
Summary of key financial data [Abstract]
Net sales	23,525	20,174
Reportable Operating Segments [Member] \| North America [Member]
Summary of key financial data [Abstract]
Net sales	67,474	62,570
Income (loss) from operations	(493)	(302)
Reportable Operating Segments [Member] \| Asia [Member]
Summary of key financial data [Abstract]
Net sales	62,309	56,139
Income (loss) from operations	1,014	(85)
Reportable Operating Segments [Member] \| Europe [Member]
Summary of key financial data [Abstract]
Net sales	26,864	24,312
Income (loss) from operations	2,295	824
Intersegment Elimination [Member]
Summary of key financial data [Abstract]
Net sales	$ (31,258)	$ (24,770)