Consolidated Statements of Stockholders' Equity - 9 months ended Sep. 30, 2015 - USD ($) $ in Thousands	Total		Common Stock	Treasury Stock	Additional Paid-in Capital	(Accumulated Deficit)
Beginning Balance (in shares) at Dec. 31, 2014			21,402,990	0
Beginning Balance at Dec. 31, 2014	$ 215,103	[1]	$ 214	$ 0	$ 266,705	$ (51,816)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(17,105)					(17,105)
Stock-based compensation (in shares)			41,259
Stock-based compensation	429				429
Purchase of treasury stock, net of costs (shares)				65,621,000
Purchase of treasury stock, net of costs	(348)			$ (348)
Common stock issued for rights offering, net of costs (in shares)			6,688,433
Common stock issued for rights offering, net of costs	38,334		$ 67		38,267
Retirement of common stock (shares)			(2,174)
Retirement of common stock	(12)				(12)
Ending Balance (in shares) at Sep. 30, 2015			28,130,508	65,621,000
Ending Balance at Sep. 30, 2015	$ 236,401		$ 281	$ (348)	$ 305,389	$ (68,921)

[1] Derived from audited consolidated financial statements.