CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements Of Comprehensive Income ( Loss)
Net income (loss)	$ 348	$ (819)	$ 1,234	$ (2,083)
Net unrealized loss on available-for-sale investments, net of tax	(65)	(68)	(76)	(85)
Total comprehensive income (loss)	$ 283	$ (887)	$ 1,158	$ (2,168)