Foreign Revenues (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Total foreign revenues	$ 2,982	$ 3,767	$ 9,996	$ 11,026
Hong Kong [Member]
Segment Reporting Information [Line Items]
Total foreign revenues			1,268	0
China [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	954	984	2,735	2,828
Malaysia [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	884	1,069	3,272	3,487
Thailand [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	247	446	894	1,208
All other foreign countries [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	$ 897	$ 1,268	$ 1,827	$ 3,503