Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Condensed Consolidated Statements of Comprehensive Income (Loss)
Revenues	$ 8,406	$ 9,938	$ 18,152	$ 20,279
Cost of revenues	6,719	7,171	13,728	14,694
Gross profit	1,687	2,767	4,424	5,585
Operating expenses:
Research and development	1,431	1,854	3,193	3,973
Selling, general and administrative	2,827	3,021	6,227	6,434
Severance and other charges	581		1,373
Total operating expenses	4,839	4,875	10,793	10,407
Loss from operations	(3,152)	(2,108)	(6,369)	(4,822)
Other income (expense):
Interest expense	(756)	(301)	(1,148)	(577)
Gain on bifurcated derivative liability	2,754		2,754
Gain (loss) on warrant liability	792	(529)	1,588	(272)
Other income (expense), net	1,008	305	628	166
Total other income (expense)	3,798	(525)	3,822	(683)
Income (loss) before income tax benefit	646	(2,633)	(2,547)	(5,505)
Income tax benefit	(697)	(217)	(1,119)	(60)
Net income (loss)	1,343	(2,416)	(1,428)	(5,445)
Foreign currency translation adjustments	(533)	602	(270)	(871)
Comprehensive income (loss)	$ 810	$ (1,814)	$ (1,698)	$ (6,316)
Basic earnings (loss) per common share	$ 0.35	$ (0.81)	$ (0.38)	$ (1.88)
Diluted earnings (loss) per common share	$ 0.13	$ (0.81)	$ (0.38)	$ (1.88)
Weighted average shares of common stock outstanding:
Basic	3,848	2,969	3,747	2,901
Diluted	10,640	2,969	3,747	2,901