CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF OPERATIONS
Net product revenue	$ 7,578	$ 6,569
Net customer support and maintenance revenue	85	128
Total revenue	7,663	6,697
Cost of product revenue	2,730	2,685
Cost of customer support and maintenance revenue	21	22
Total cost of revenue	2,751	2,707
Gross profit	4,912	3,990
Operating expenses:
Sales and marketing	1,435	1,317
Research and development	1,579	1,660
General and administrative	1,144	1,143
Operating income (loss)	754	(130)
Interest expense	(131)	(116)
Income (loss) from operations before income taxes	623	(246)
Income tax provision	0
Net income (loss)	623	(246)
Preferred stock dividends accrued	(151)	(152)
Net income (loss) attributable to common stockholders	$ 472	$ (398)
Net income (loss) per share attributable to common stockholders, basic (in dollars per share)	$ 0.04	$ (0.03)
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share)	$ 0.03	$ (0.03)
Weighted average common shares outstanding:
Basic (in shares)	12,172	12,035
Diluted (in shares)	14,290	12,035