SEGMENTS (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) Industry Segment	Mar. 31, 2017 USD ($)
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 to external customers	$ 118,251	$ 113,668
Net sales	118,251	113,668
Income from operations	437	2,355
North America [Member]
Summary of key financial data [Abstract]
Net sales	59,457
Asia [Member]
Summary of key financial data [Abstract]
Net sales	38,620
Europe [Member]
Summary of key financial data [Abstract]
Net sales	20,174
Reportable Operating Segments [Member] | North America [Member]
Summary of key financial data [Abstract]
Net sales to external customers	59,457	60,430
Net sales	62,570	63,155
Income from operations	(302)	992
Reportable Operating Segments [Member] | Asia [Member]
Summary of key financial data [Abstract]
Net sales to external customers	38,620	35,812
Net sales	56,139	56,411
Income from operations	(85)	1,036
Reportable Operating Segments [Member] | Europe [Member]
Summary of key financial data [Abstract]
Net sales to external customers	20,174	17,426
Net sales	24,312	20,385
Income from operations	824	327
Intersegment Elimination [Member]
Summary of key financial data [Abstract]
Net sales	$ (24,770)	$ (26,283)