N. Segment And Geographic Information (Details-Revenues) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues	$ 52,952	$ 57,085	$ 49,632	$ 30,234	$ 36,391	$ 36,549	$ 32,650	$ 24,859	$ 189,903	$ 130,449	$ 78,424
United States [Member]
Revenues									53,997	30,723	14,705
TAIWAN, PROVINCE OF CHINA
Revenues									115,265	77,680	31,863
China [Member]
Revenues									$ 20,641	$ 22,046	$ 31,856