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Condensed Consolidated Statements of Stockholders' Equity Deficit (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($)
$ in Thousands
Total
Common Stock Issued [Member]
Treasury Stock [Member]
Additional Paid in Capital [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2017 $ 678 $ 2 $ (51) $ 325,517 $ (324,832) $ 42
Balance (in shares) at Dec. 31, 2017   228,140 (1)      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Compensation expense for issuance of stock options 7     7    
Compensation expense for issuance of restricted stock 14     14    
Sale of common stock, net of expenses 4,252 $ 7   4,245    
Sale of common stock, net of expenses (in shares)   668,855        
Fair value of warrants issued (18,306)     (18,306)    
Net Income 7,187       7,187  
Total comprehensive loss (34)         (34)
Balance at Mar. 31, 2018 $ (6,202) $ 9 $ (51) $ 311,477 $ (317,645) $ 8
Balance (in shares) at Mar. 31, 2018   896,995 (1)