CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Preferred stock, par value (in USD per share)	$ 0.001
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, par value (in USD per share)	$ 0.001	$ 0.001
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	28,239,276	28,108,105
Common stock, shares outstanding	28,239,276	28,108,105
Series A Preferred Stock
Preferred stock, par value (in USD per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	612,943	630,419
Preferred stock, shares outstanding	612,943	630,419
Preferred stock, liquidation preference	$ 913,285	$ 939,324
Series B Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized	10,000,000	10,000,000
Temporary equity, shares issued	8,160,809	0
Temporary equity, shares outstanding	8,160,809	0
Temporary equity, liquidation preference	$ 25,298,508
Preferred stock, shares authorized	2,000,000