Condensed Consolidated Statements of Stockholders' (Deficit) Equity (unaudited) - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Treasury Stock
Balance (in shares) at Dec. 31, 2015		5,201,733			626
Balance at Dec. 31, 2015	$ 217	$ 3,121	$ 156,195	$ (159,028)	$ (71)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(7,940)			(7,940)
Issuance of common stock and warrants, net of issuance costs (in shares)		4,601,789
Issuance of common stock and warrants, net of issuance costs	6,183	$ 2,014	4,169
Issuance of common stock in connection with amendments to Credit Agreement (in shares)		77,922
Issuance of common stock in connection with amendments to Credit Agreement	150	$ 47	103
Share-based compensation (in shares)		166,665
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	548	$ 100	448
Reverse stock split re-allocation	0	$ (4,880)	4,880
Other adjustments due to reverse stock split (in shares)		486
Retirement of treasury stock (in shares)		(626)			(626)
Retirement of treasury stock	0		(71)		$ 71
Repricing of SWK Warrant 1	264		264
Balance (in shares) at Sep. 30, 2016		10,047,969			0
Balance at Sep. 30, 2016	$ (578)	$ 402	$ 165,988	$ (166,968)	$ 0