SEGMENT INFORMATION (Segment Reporting) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenue	$ 198,092	$ 219,493
Gross profit	22,997	16,209
Depreciation	12,957	15,750
Capital expenditures	7,305	8,958
Total assets	93,132	101,433
Domestic [Member]
Segment Reporting Information [Line Items]
Revenue	99,827	157,026
Gross profit	7,396	11,074
Depreciation	7,450	10,741
Capital expenditures	4,757	5,008
Total assets	77,032	80,509
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	79,683	54,637
Gross profit	16,476	8,063
Depreciation	4,659	4,381
Capital expenditures	1,728	2,558
Total assets	12,779	17,624
Latin America [Member]
Segment Reporting Information [Line Items]
Revenue	18,582	7,830
Gross profit	(875)	(2,928)
Depreciation	848	628
Capital expenditures	820	1,392
Total assets	$ 3,321	$ 3,300