Foreign Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Hong Kong [Member]
Foreign revenues [Abstract]
Total foreign revenues	$ 132	$ 79
China [Member]
Foreign revenues [Abstract]
Total foreign revenues	63	235
Malaysia [Member]
Foreign revenues [Abstract]
Total foreign revenues	726	598
All Other Foreign Countries [Member]
Foreign revenues [Abstract]
Total foreign revenues	353	544
Total Foreign Countries [Member]
Foreign revenues [Abstract]
Total foreign revenues	$ 1,274	$ 1,456