SEGMENTS, Entity Wide Information (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) Customer	Dec. 31, 2017 USD ($) Customer
Segment Information by Geographic Area [Abstract]
Net sales	$ 548,184	$ 491,611
Long-lived assets	70,013	71,468
Net Sales [Member] \| Customer Concentration Risk [Member]
Segment Information by Geographic Area [Abstract]
Net sales	$ 67,700	$ 57,700
Number of customers representing sales in excess of ten percent \| Customer	1	1
Concentration risk percentage	12.30%	11.70%
Connectivity Solutions [Member]
Segment Information by Geographic Area [Abstract]
Net sales	$ 186,724	$ 170,337
Magnetic Solutions [Member]
Segment Information by Geographic Area [Abstract]
Net sales	185,407	161,011
Power Solutions and Protection [Member]
Segment Information by Geographic Area [Abstract]
Net sales	176,053	160,263
United States [Member]
Segment Information by Geographic Area [Abstract]
Net sales	271,691	245,834
Long-lived assets	27,505	27,594
Macao [Member]
Segment Information by Geographic Area [Abstract]
Net sales	187,204	167,681
United Kingdom [Member]
Segment Information by Geographic Area [Abstract]
Net sales	26,340	24,110
Long-lived assets	2,330	1,345
Slovakia [Member]
Segment Information by Geographic Area [Abstract]
Net sales	24,123	14,194
Long-lived assets	6,475	7,625
Germany [Member]
Segment Information by Geographic Area [Abstract]
Net sales	15,298	13,857
Switzerland [Member]
Segment Information by Geographic Area [Abstract]
Net sales	13,279	15,366
Long-lived assets	3,023	3,632
All Other Foreign Countries [Member]
Segment Information by Geographic Area [Abstract]
Net sales	10,249	10,569
Long-lived assets	1,117	1,121
Asia [Member]
Segment Information by Geographic Area [Abstract]
Net sales	$ 187,203	167,680
Asia [Member] \| Assets [Member] \| Geographic Concentration Risk [Member]
Segment Information by Geographic Area [Abstract]
Concentration risk percentage	41.30%
Asia [Member] \| Connectivity Solutions [Member]
Segment Information by Geographic Area [Abstract]
Net sales	$ 17,140
Asia [Member] \| Magnetic Solutions [Member]
Segment Information by Geographic Area [Abstract]
Net sales	137,998
Asia [Member] \| Power Solutions and Protection [Member]
Segment Information by Geographic Area [Abstract]
Net sales	32,065
People's Republic of China (PRC) [Member]
Segment Information by Geographic Area [Abstract]
Long-lived assets	$ 29,563	$ 30,151

Refers to number of customers representing sales in excess of ten percent.

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- References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 41
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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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-Name Accounting Standards Codification
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