9. SEGMENT AND GEOGRAPHIC INFORMATION (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) segment	Dec. 31, 2015 USD ($)
Net revenues and long-lived assets by geographic area
Revenue, Net	$ 11,484	$ 12,921	$ 37,788	$ 40,523
Number of reportable business segments | segment			1
United States
Net revenues and long-lived assets by geographic area
Revenue, Net	3,838	4,873	$ 14,094	16,123
China
Net revenues and long-lived assets by geographic area
Revenue, Net	2,024	2,808	8,121	9,916
Singapore
Net revenues and long-lived assets by geographic area
Revenue, Net	2,947	1,682	8,502	4,681
Netherlands
Net revenues and long-lived assets by geographic area
Revenue, Net	1,576	2,518	3,539	6,073
Rest of the world
Net revenues and long-lived assets by geographic area
Revenue, Net	$ 1,099	$ 1,040	$ 3,532	$ 3,730