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CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($)
$ in Thousands
Series B Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Non-Controlling Interest
Total
Beginning Balance - Shares at Dec. 31, 2015 1,398 19,619          
Beginning Balance - Amount at Dec. 31, 2015 $ 1 $ 20 $ 82,115 $ (114,251) $ (3,179) $ 0 $ (35,294)
Conversion of Series B preferred to common stock, Shares (70) 7          
Stock-based compensation     747       747
Issuance and exercise of warrants, Shares   232          
Issuance and exercise of warrants, Amount     579       579
Other comprehensive income (loss)         (209)   (209)
Net loss       (15,636)     (15,636)
Ending Balance, Shares at Dec. 31, 2016 1,328 19,858          
Ending Balance, Amount at Dec. 31, 2016 $ 1 $ 20 83,441 (129,887) (3,388) 0 (49,813)
Conversion of Series B preferred to common stock, Shares (5)            
Stock-based compensation     1,101       1,101
Shares issued to consultants and other services, Shares   100          
Shares issued to consultants and other services, Amount     118       118
Issuance and exercise of warrants, Shares   240          
Issuance and exercise of warrants, Amount     338       338
Repurchase of common stock, Shares   (275)          
Repurchase of common stock, Amount     (451)       (451)
Issuance of shares for interest and note extinguishment, Shares   165          
Issuance of shares for interest and note extinguishment, Amount     132       132
Other comprehensive income (loss)         484   484
Net loss       (30,301)   (1,469) (31,770)
Ending Balance, Shares at Dec. 31, 2017 1,323 20,088          
Ending Balance, Amount at Dec. 31, 2017 $ 1 $ 20 $ 84,679 $ (160,188) $ (2,904) $ (1,469) $ (79,861)