CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net product revenue	$ 2,061	$ 1,788	$ 3,766	$ 3,364
Net customer support and maintenance revenue	8	17	18	35
Total revenue	2,069	1,805	3,784	3,399
Cost of product revenue	779	614	1,408	1,187
Cost of customer support and maintenance revenue	3	2	6	5
Total cost of revenue	782	616	1,414	1,192
Gross profit	1,287	1,189	2,370	2,207
Operating expenses:
Sales and marketing	444	352	942	775
Research and development	511	520	1,049	999
General and administrative	310	313	641	666
Operating income (loss)	22	4	(262)	(233)
Interest expense, net	(26)	(26)	(52)	(59)
Loss before income tax provision	(4)	(22)	(314)	(292)
Net loss	(4)	(22)	(314)	(292)
Preferred stock dividends accrued	(35)	(34)	(69)	(71)
Net loss attributable to common stockholders	$ (39)	$ (56)	$ (383)	$ (363)
Net loss per share attributable to common stockholders:
Basic (in dollars per share)	$ 0.00	$ 0.00	$ (0.03)	$ (0.03)
Diluted (in dollars per share)	$ 0.00	$ 0.00	$ (0.03)	$ (0.03)
Weighted average common shares outstanding:
Basic (in shares)	12,612	12,419	12,584	12,356
Diluted (in shares)	12,612	12,419	12,584	13,356