Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Product	$ 1,574	$ 1,872	$ 3,153	$ 3,658
Service	464	1,390	964	3,037
Total revenues	2,038	3,262	4,117	6,695
Cost of sales:
Product	1,077	1,168	2,198	2,075
Service	281	1,175	612	2,627
Total cost of sales	1,358	2,343	2,810	4,702
Gross margin	680	919	1,307	1,993
Research and development	547	649	1,201	1,255
Sales and marketing	620	713	1,324	1,338
General and administrative	717	$ 671	1,469	$ 1,521
Restructuring charge	58		58
Total operating expenses	1,942	$ 2,033	4,052	$ 4,114
Loss from operations	(1,262)	(1,114)	(2,745)	$ (2,121)
Other (loss) income, net	(4)	1	(21)
Loss before income tax	(1,266)	(1,113)	(2,766)	$ (2,121)
Income tax provision	7	15	16	23
Net loss	$ (1,273)	$ (1,128)	$ (2,782)	$ (2,144)
Net loss per share:
Basic net loss per share (in dollars per share)	$ (0.15)	$ (0.16)	$ (0.33)	$ (0.31)
Diluted net loss per share (in dollars per share)	$ (0.15)	$ (0.16)	$ (0.33)	$ (0.31)