CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net product revenue	$ 1,544	$ 2,011	$ 5,309	$ 5,375
Net customer support and maintenance revenue	8	19	27	54
Total revenue	1,552	2,030	5,336	5,429
Cost of product revenue	567	704	1,975	1,891
Cost of customer support and maintenance revenue	3	3	9	8
Total cost of revenue	570	707	1,984	1,899
Gross profit	982	1,323	3,352	3,530
Operating expenses:
Sales and marketing	490	470	1,432	1,245
Research and development	592	443	1,641	1,442
General and administrative	305	293	946	959
Operating income (loss)	(405)	117	(667)	(116)
Interest expense, net	(27)	(24)	(79)	(83)
Other income		54		54
Net income (loss)	(432)	147	(746)	(145)
Preferred stock dividends accrued	(35)	(35)	(104)	(106)
Net income (loss) attributable to common stockholders	$ (467)	$ 112	$ (850)	$ (251)
Net income (loss) per share attributable to common stockholders:
Basic (in dollars per share)	$ (0.04)	$ 0.01	$ (0.07)	$ (0.02)
Diluted (in dollars per share)	$ (0.04)	$ 0.01	$ (0.07)	$ (0.02)
Weighted average common shares outstanding:
Basic (in shares)	12,612	12,426	12,593	12,379
Diluted (in shares)	12,612	15,485	12,593	12,379