CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Income Statement
Net revenues	$ 11,484	$ 12,921	$ 37,788	$ 40,523
Cost of revenues	4,989	6,535	17,228	19,925
Gross profit	6,495	6,386	20,560	20,598
Operating expenses:
Research and development	3,813	2,782	11,594	8,720
Selling, general and administrative	2,448	5,164	7,963	14,743
Total operating expenses	6,261	7,946	19,557	23,463
Income (loss) from operations	234	(1,560)	1,003	(2,865)
Interest income, net	81	78	227	229
Other income (expense), net	(20)	11	68	(45)
Income (loss) before income taxes	295	(1,471)	1,298	(2,681)
Provision (benefit) for income taxes	(53)	(652)	64	(598)
Net income (loss)	$ 348	$ (819)	$ 1,234	$ (2,083)
Net income (loss) per share:
Basic	$ 0.02	$ (0.04)	$ 0.06	$ (0.09)
Diluted	$ 0.02	$ (0.04)	$ 0.06	$ (0.09)
Weighted average shares used in per share calculations:
Basic	20,300	22,612	20,707	22,743
Diluted	21,097	22,612	21,239	22,743