Foreign Revenues (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Total foreign revenues	$ 3,401	$ 3,937	$ 7,014	$ 7,259
Hong Kong [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	494	0	1,025	0
China [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	907	910	1,781	1,844
Malaysia [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	1,074	1,339	2,388	2,418
Thailand [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	274	403	647	762
All other foreign countries [Member]
Segment Reporting Information [Line Items]
Total foreign revenues	$ 652	$ 1,285	$ 1,173	$ 2,235