Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Product	$ 1,579	$ 1,786
Service	500	1,647
Total revenues	2,079	3,433
Cost of sales:
Product	1,121	907
Service	331	1,452
Total cost of sales	1,452	2,359
Gross margin	627	1,074
Research and development	654	606
Sales and marketing	704	625
General and administrative	752	850
Total operating expenses	2,110	2,081
Loss from operations	(1,483)	(1,007)
Other loss, net	(17)	(1)
Loss before income tax	(1,500)	(1,008)
Income tax provision	9	8
Net loss	$ (1,509)	$ (1,016)
Net loss per share:
Basic net loss per share (in dollars per share)	$ (0.18)	$ (0.14)
Diluted net loss per share (in dollars per share)	$ (0.18)	$ (0.14)