Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue	$ 1,678	$ 1,595	$ 4,780	$ 4,693
Cost of revenue	736	610	1,951	1,677
Gross profit	942	985	2,829	3,016
Operating expenses:
Sales and marketing	394	429	1,169	1,276
Research and development	617	508	1,797	1,908
General and administrative	242	292	855	941
Operating loss	(311)	(244)	(992)	(1,109)
Other Income	928		928
Interest expense, net	(49)	(36)	(157)	(102)
Net Income (loss)	568	(280)	(221)	(1,211)
Preferred stock dividends accrued	(35)	(35)	(104)	(104)
Net income (loss) attributable to common stockholders	$ 533	$ (315)	$ (325)	$ (1,315)
Net income (loss) per share attributable to common stockholders:
Basic (in dollars per share)	$ 0.04	$ (0.02)	$ (0.03)	$ (0.10)
Diluted (in dollars per share)	$ 0.04	$ (0.02)	$ (0.03)	$ (0.10)
Weighted average common shares outstanding:
Basic (in shares)	12,798	12,748	12,781	12,733
Diluted (in shares)	14,076	12,748	12,781	12,733