Consolidated Statements of Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Consolidated Statements of Comprehensive Loss
Revenues	$ 9,746	$ 10,341
Cost of revenues	7,009	7,523
Gross profit	2,737	2,818
Operating expenses:
Selling, general and administrative	3,400	3,407
Research and development	1,762	2,119
Severance and other charges	792	6
Total operating expenses	5,954	5,532
Loss from operations	(3,217)	(2,714)
Other income (expense):
Interest expense	(392)	(276)
Other income, net	416	118
Total other income (expense)	24	(158)
Loss before income taxes	(3,193)	(2,872)
Income tax expense (benefit)	(422)	157
Net loss	(2,771)	(3,029)
Foreign currency translation adjustments	263	(1,473)
Comprehensive loss	$ (2,508)	$ (4,502)
Basic and diluted net loss per common share:
Net loss (in dollars per share)	$ (0.15)	$ (0.21)
Basic and diluted weighted average shares outstanding (in shares)	18,235	14,156