Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Revenues	$ 11,657	$ 8,726	$ 34,755	$ 24,756
Cost of revenues	6,361	4,720	19,024	13,737
Gross margin	5,296	4,006	15,731	11,019
Research and development expenses	2,266	1,978	6,669	5,835
Selling, general and administrative expenses	3,527	2,989	10,536	9,340
Amortization of intangibles	17	0	37	0
Loss from operations	(514)	(961)	(1,511)	(4,156)
Interest income and other	75	(107)	2	(184)
Loss before income taxes	(439)	(1,068)	(1,509)	(4,340)
Income tax provision (benefit)	9	(294)	63	(220)
Net income (loss)	$ (448)	$ (774)	$ (1,572)	$ (4,120)
Net loss per share – Basic (in usd per share)	$ (0.07)	$ (0.11)	$ (0.24)	$ (0.60)
Net loss per share – Diluted (in usd per share)	$ (0.07)	$ (0.11)	$ (0.24)	$ (0.60)
Weighted average shares outstanding – Basic	6,609	6,784	6,555	6,883
Weighted average shares outstanding – Diluted	6,609	6,784	6,555	6,883