CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (546)	$ 27	$ (2,715)	$ (501)
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on investments in securities	198	(39)	225	107
Foreign currency translation adjustment	1,192	(1,500)	2,983	(4,284)
Comprehensive income (loss)	$ 844	$ (1,512)	$ 493	$ (4,678)