CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Consolidated Statements Of Comprehensive Income (Loss)
Net income (loss)	$ (1,512)	$ 260
Net unrealized gain (loss) on available-for-sale investments	(6)	7
Total comprehensive income (loss)	$ (1,518)	$ 267