CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (DEFICIT) - 9 months ended Sep. 30, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Shares of Common Stock	Shares of Preferred Stock	Common Stock and Additional Paid-in Capital	Preferred Stock	Accumulated Deficit
Balance at Dec. 31, 2017	$ 17,870			$ 61,724	$ 62,423	$ (106,277)
Balance (in shares) at Dec. 31, 2017	19,697	19,697
Balance (in shares) at Dec. 31, 2017	2,812		2,812
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	$ 126			126
Issuance of restricted stock, net of forfeitures (in shares)		490
Net loss	(10,253)					(10,253)
Balance at Sep. 30, 2018	$ 7,743			$ 61,850	$ 62,423	$ (116,530)
Balance (in shares) at Sep. 30, 2018	20,187	20,187
Balance (in shares) at Sep. 30, 2018	2,812		2,812