Foreign Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Significant Foreign Revenues [Abstract]
Total foreign revenues	$ 1,349	$ 1,080	$ 4,082	$ 4,156
Malaysia [Member]
Significant Foreign Revenues [Abstract]
Total foreign revenues	694	451	2,202	1,749
All Other Foreign Countries [Member]
Significant Foreign Revenues [Abstract]
Total foreign revenues	$ 655	$ 629	$ 1,880	$ 2,407