Condensed Consolidated Statement of Stockholders' Deficit - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Balance (in shares) at Dec. 31, 2016		10,103,525
Balance at Dec. 31, 2016	$ (2,864)	$ 404	$ 166,084	$ (169,352)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,129)			(3,129)
Issuance of common stock and warrants, net of issuance costs (in shares)		2,057,824
Issuance of common stock and warrants, net of issuance costs	1,300	$ 83	1,217
Share-based compensation (in shares)		6,000
Share-based compensation	38		38
Balance (in shares) at Mar. 31, 2017		12,167,349
Balance at Mar. 31, 2017	$ (4,655)	$ 487	$ 167,339	$ (172,481)