CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (4,751)	$ (5,120)	$ 1,926
Other comprehensive loss, net of tax
Unrealized gain (loss) on investments in securities	70	(50)	(26)
Foreign currency translation adjustment	(5,528)	(2,025)	(2,513)
Comprehensive loss	$ (10,209)	$ (7,195)	$ (613)