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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Common stock, par value (usd per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 18,254,009 18,244,009
Common stock, shares outstanding (in shares) 18,254,009 18,244,009
Series C-1 Convertible Preferred Stock [Member]    
Preferred stock, par value (usd per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 11,000 11,000
Preferred stock, shares issued (in shares) 3,906 3,906
Preferred stock, shares outstanding (in shares) 3,906 3,906
Preferred stock, liquidation $ 3,906 $ 3,906
Series F Convertible Preferred Stock [Member]    
Preferred stock, par value (usd per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 10,000 10,000
Preferred stock, shares issued (in shares) 2,737 2,737
Preferred stock, shares outstanding (in shares) 2,737 2,737
Preferred stock, liquidation $ 2,737 $ 2,737