10. SEGMENT AND GEOGRAPHIC INFORMATION (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2017 USD ($) segment	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Net revenues and long-lived assets by geographic area
Revenue, Net	$ 10,392	$ 11,484	$ 13,358	$ 12,946	$ 12,213	$ 12,921	$ 13,577	$ 14,025	$ 48,180	$ 52,736	$ 53,498
Property, Plant, and Equipment, Net	7,689				8,653				$ 7,689	8,653
Number of reportable business segments | segment									1
United States
Net revenues and long-lived assets by geographic area
Revenue, Net									$ 19,708	20,951	18,099
Property, Plant, and Equipment, Net	5,648				6,085				5,648	6,085
China
Net revenues and long-lived assets by geographic area
Revenue, Net									9,364	12,123	15,695
Singapore
Net revenues and long-lived assets by geographic area
Revenue, Net									9,475	7,345	6,552
Taiwan
Net revenues and long-lived assets by geographic area
Property, Plant, and Equipment, Net	1,952				2,521				1,952	2,521
Israel
Net revenues and long-lived assets by geographic area
Property, Plant, and Equipment, Net	$ 89				$ 47				89	47
Rest of the world
Net revenues and long-lived assets by geographic area
Revenue, Net									$ 9,633	$ 12,317	$ 13,152