Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Revenues	$ 13,770	$ 12,607
Cost of revenues	12,193	8,714
Gross margin	1,577	3,893
Operating expenses:
Research and development	2,473	2,840
Selling, general and administrative	5,255	5,786
Amortization of acquisition-related intangibles	85	85
Restructuring	0	310
Total operating expenses	7,813	9,021
Operating loss	(6,236)	(5,128)
Change in fair value of warrants	2,946	(464)
Interest income, net	505	201
Other income (expense), net	(543)	609
Loss before income tax expense	(3,328)	(4,782)
Income tax expense (benefit)	211	(45)
Net loss	$ (3,539)	$ (4,737)
Net loss per common share
Basic (in dollars per share)	$ (0.17)	$ (0.23)
Diluted (in dollars per share)	$ (0.17)	$ (0.23)
Weighted average number of common shares outstanding
Basic (in shares)	20,514	20,167
Diluted (in shares)	20,514	20,167