SEGMENTS, Key Financial Data (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Segment Industry	Dec. 31, 2017 USD ($)
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	$ 548,184	$ 491,611
Income from operations	29,611	17,386
Total assets	443,524	431,265
Purchases of property, plant and equipment	11,594	6,425
Depreciation and amortization expense	18,207	20,718
Restructuring charges	222	308
North America [Member]
Summary of key financial data [Abstract]
Net sales	271,691	245,834
Asia [Member]
Summary of key financial data [Abstract]
Net sales	187,203	167,680
Europe [Member]
Summary of key financial data [Abstract]
Net sales	89,290	78,097
Reportable Operating Segments [Member] | North America [Member]
Summary of key financial data [Abstract]
Net sales	284,245	257,541
Income from operations	6,769	6,195
Total assets	177,902	172,674
Purchases of property, plant and equipment	4,836	1,734
Depreciation and amortization expense	8,906	10,641
Reportable Operating Segments [Member] | Asia [Member]
Summary of key financial data [Abstract]
Net sales	279,965	249,506
Income from operations	16,621	8,964
Total assets	175,713	152,447
Purchases of property, plant and equipment	5,661	2,617
Depreciation and amortization expense	5,842	6,728
Reportable Operating Segments [Member] | Europe [Member]
Summary of key financial data [Abstract]
Net sales	103,853	89,765
Income from operations	6,221	2,227
Total assets	89,909	106,144
Purchases of property, plant and equipment	1,097	2,074
Depreciation and amortization expense	3,459	3,349
Intersegment Eliminations [Member]
Summary of key financial data [Abstract]
Net sales	$ (119,879)	$ (105,201)