N. Segment and Geographic Information (Details Narrative) - 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
Internet data center [Member] | Sales Revenue, Net [Member]
Revenues									$ 123,200	$ 64,400
Concentration percentage									64.90%	49.40%
CATV markets [Member] | Sales Revenue, Net [Member]
Revenues									$ 53,700	$ 47,400
Concentration percentage									28.30%	36.30%
FTTH markets [Member] | Sales Revenue, Net [Member]
Revenues									$ 2,500	$ 13,600
Concentration percentage									1.30%	10.40%
Other markets [Member] | Sales Revenue, Net [Member]
Revenues									$ 10,500	$ 5,000
Concentration percentage									5.50%	3.90%