Consolidated Statement of Stockholders' Equity - 9 months ended Sep. 30, 2015 - USD ($) $ in Thousands	Total	Common stock [Member]	Additional paid-in capital [Member]	Accumulated comprehensive income (deficit) [Member]
BALANCE at Dec. 31, 2014	$ 14,902	$ 45	$ 223,141	$ (208,284)
BALANCE, Shares at Dec. 31, 2014	45,000,891	45,000,891
Exercise of common stock options	$ 10		10
Exercise of common stock options, shares		9,000
Non cash compensation recognized on stock options and ESPP	142		142
Restricted stock grants, net of cancellations	1,485	$ 1	1,484
Restricted stock grants, net of cancellations, shares		1,375,000
Cancellation of shares for payment of withholding tax	(397)		(397)
Cancellation of shares for payment of withholding tax, shares		(314,000)
Employee stock purchase plan (ESPP)	17		17
Employee stock purchase plan (ESPP), shares		24,000
Comprehensive loss	(2,010)			(2,010)
BALANCE at Sep. 30, 2015	$ 14,149	$ 46	$ 224,397	$ (210,294)
BALANCE, Shares at Sep. 30, 2015	46,094,048	46,094,048