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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 10,000,000 10,000,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 4,917,235 4,223,124
Common Stock, Shares, Outstanding 4,917,235 4,223,124
Series A Convertible Preferred Stock [Member]    
Preferred stock shares designated 6,176,748 6,176,748
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Temporary equity, liquidation preference $ 0 $ 0
Series B Convertible Preferred Stock [Member]    
Preferred stock shares designated 2,750 2,750
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Temporary equity, liquidation preference $ 0 $ 0
Series C Convertible Preferred Stock [Member]    
Preferred stock shares designated 2,500 2,500
Preferred stock, shares issued 2,500 0
Preferred stock, shares outstanding 2,500 0
Temporary equity, liquidation preference $ 2,500,000 $ 0
Series D Convertible Preferred Stock [Member]    
Preferred stock shares designated 1,500 1,500
Preferred stock, shares issued 369 0
Preferred stock, shares outstanding 360 0
Temporary equity, liquidation preference $ 369,000 $ 0