BUSINESS SEGMENT INFORMATION (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013 Industry Segment	Jun. 30, 2012 Segment Industry	Jun. 30, 2013 Industry Segment	Jun. 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	$ 106,928,000	$ 86,477,000	$ 178,999,000	$ 165,839,000
Reconciling item [Abstract]
Intersegment sales	(12,947,000)	(13,255,000)	(21,990,000)	(27,056,000)
Net Sales	93,981,000	73,222,000	157,009,000	138,783,000
Income from operations [Abstract]
Income (loss) from operations	2,548,000	2,333,000	1,141,000	3,762,000
North America [Member]
Total segment sales [Abstract]
Total segment sales	32,301,000	35,455,000	61,523,000	71,980,000
Income from operations [Abstract]
Income (loss) from operations	(2,012,000)	1,953,000	(3,495,000)	4,263,000
Asia [Member]
Total segment sales [Abstract]
Total segment sales	64,036,000	43,795,000	96,760,000	78,642,000
Income from operations [Abstract]
Income (loss) from operations	4,642,000	523,000	3,977,000	(1,039,000)
Combined revenue from acquired companies	22,000,000		22,000,000
Europe [Member]
Total segment sales [Abstract]
Total segment sales	10,591,000	7,227,000	20,716,000	15,217,000
Income from operations [Abstract]
Income (loss) from operations	(82,000)	(143,000)	659,000	538,000
Combined revenue from acquired companies	3,000,000	0	5,900,000	0
Combined income from operations from acquired companies	$ 200,000	$ 0	$ 1,100,000	$ 0