BUSINESS SEGMENT INFORMATION (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013 Industry Segment	Sep. 30, 2012 Segment Industry	Sep. 30, 2013 Industry Segment	Sep. 30, 2012 Industry Segment
BUSINESS SEGMENT INFORMATION [Abstract]
Number of industry in which entity operates	1	1	1	1
Number of reportable operating segments	3	3	3	3
Total segment sales [Abstract]
Total segment sales	$ 113,188,000	$ 90,591,000	$ 292,187,000	$ 256,430,000
Reconciling item [Abstract]
Intersegment sales	(12,024,000)	(14,532,000)	(34,014,000)	(41,588,000)
Net Sales	101,164,000	76,059,000	258,173,000	214,842,000
Income from operations [Abstract]
Income (loss) from operations	8,328,000	880,000	9,430,000	4,642,000
North America [Member]
Total segment sales [Abstract]
Total segment sales	34,273,000	34,370,000	95,796,000	106,349,000
Income from operations [Abstract]
Income (loss) from operations	(96,000)	(189,000)	(3,591,000)	4,074,000
Combined revenue from acquired companies	800,000		800,000
Asia [Member]
Total segment sales [Abstract]
Total segment sales	69,602,000	47,238,000	166,362,000	125,881,000
Income from operations [Abstract]
Income (loss) from operations	8,400,000	1,048,000	12,377,000	8,000
Combined revenue from acquired companies	25,600,000		47,800,000
Combined income from operations from acquired companies	5,000,000		9,500,000
Europe [Member]
Total segment sales [Abstract]
Total segment sales	9,313,000	8,983,000	30,029,000	24,200,000
Income from operations [Abstract]
Income (loss) from operations	24,000	21,000	644,000	560,000
Combined revenue from acquired companies	1,800,000	900,000	7,700,000	900,000
Combined income from operations from acquired companies	$ 100,000	$ 100,000	$ 1,300,000	$ 100,000