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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Net of allowance for doubtful accounts, (Accounts receivable) $ 40 $ 85
Net of discount, (Short-term related party loans payable) 0 454
Net of discount, (Long-term related party loans) 1,916 0
Liquidation preference $ 5,692 $ 7,690
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 200,000 200,000
Common stock, shares issued 82,582 66,649
Common stock, shares outstanding 82,582 66,649