Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net product revenue	$ 1,595	$ 1,544	$ 4,693	$ 5,309
Net customer support and maintenance revenue		8		27
Total revenue	1,595	1,552	4,693	5,336
Cost of product revenue	610	567	1,677	1,975
Cost of customer support and maintenance revenue		3		9
Total cost of revenue	610	570	1,677	1,984
Gross profit	985	982	3,016	3,352
Operating expenses:
Sales and marketing	429	490	1,276	1,432
Research and development	508	592	1,908	1,641
General and administrative	292	305	941	946
Operating loss	(244)	(405)	(1,109)	(667)
Interest expense, net	(36)	(27)	(102)	(79)
Net loss	(280)	(432)	(1,211)	(746)
Preferred stock dividends accrued	(35)	(35)	(104)	(104)
Net loss attributable to common stockholders	$ (315)	$ (467)	$ (1,315)	$ (850)
Basic (in dollars per share)	$ (0.02)	$ (0.04)	$ (0.10)	$ (0.07)
Diluted (in dollars per share)	$ (0.02)	$ (0.04)	$ (0.10)	$ (0.07)
Weighted average common shares outstanding:
Basic (in shares)	12,748	12,612	12,733	12,593
Diluted (in shares)	12,748	12,612	12,733	12,593