CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Consolidated Statements Of Comprehensive Income ( Loss)
Net income (loss)	$ 260	$ (917)
Net unrealized gain (loss) on available-for-sale investments, net of tax	7	(5)
Total comprehensive income (loss)	$ 267	$ (922)