CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Income Statement
Net revenues	$ 42,643	$ 48,180	$ 52,736
Cost of revenues	20,217	21,764	25,999
Gross profit	22,426	26,416	26,737
Operating expenses:
Research and development	16,998	15,803	12,095
Selling, general and administrative	9,899	11,140	17,663
Total operating expenses	26,897	26,943	29,758
Loss from operations	(4,471)	(527)	(3,021)
Interest income, net	421	312	307
Other income (expense), net	(12)	166	(97)
Loss before income taxes	(4,062)	(49)	(2,811)
Provision for (benefit from) income taxes	453	66	(641)
Net loss	$ (4,515)	$ (115)	$ (2,170)
Net loss per share:
Basic	$ (0.21)	$ (0.01)	$ (0.10)
Diluted	$ (0.21)	$ (0.01)	$ (0.10)
Weighted average shares used in per share calculations:
Basic	21,085	20,652	22,593
Diluted	21,085	20,652	22,593