CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
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	33,151,391	28,239,276
Common stock, shares outstanding	33,151,391	28,239,276
Common stock, shares held in escrow	1,108,928
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	492,716	612,943
Preferred stock, shares outstanding	492,716	612,943
Preferred stock, liquidation preference	$ 734,147	$ 913,285
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	3,229,409	8,160,809
Temporary equity, shares outstanding	3,229,409	8,160,809
Temporary equity, liquidation preference	$ 10,011,168	$ 25,298,508
Preferred stock, shares authorized	10,000,000
Series B-1 Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized	17,000,000
Temporary equity, shares issued	12,282,638	0
Temporary equity, shares outstanding	12,282,638	0
Temporary equity, liquidation preference	$ 19,160,915	$ 0
Preferred stock, shares authorized	17,000,000
Preferred stock, shares issued	12,282,638	0
Series C Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized	44,000
Temporary equity, shares issued	31,568	0
Temporary equity, shares outstanding	31,568	0
Temporary equity, liquidation preference	$ 3,156,800	$ 0
Preferred stock, shares authorized	44,000
Preferred stock, shares issued	31,568	0
Preferred stock, shares outstanding	31,568