Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Common Stock [Member]	Paid-In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2014	$ 25	$ 233,524	$ (202,154)	$ (258)	$ 31,137
Balance shares at Dec. 31, 2014	25,192,669
Net loss			(8,313)		(8,313)
Common stock issued, net of issuance costs	$ 5	5,649			5,654
Common stock issued, net of issuance costs, shares	4,160,500
Common stock issued for loan interest and fees		380			380
Common stock issued for loan interest and fees, shares	239,375
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes		625			625
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes, shares	251,569
Minimum withholding taxes on net share settlements of equity awards		(126)			(126)
Balance at Jun. 30, 2015	$ 30	$ 240,052	$ (210,467)	$ (258)	$ 29,357
Balance shares at Jun. 30, 2015	29,844,113