CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, par value (in dollars per share)	$ 0.001
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	41,849,406	40,174,821
Common stock, shares outstanding	41,849,406	40,174,821
Series B Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares designated	10,000,000	10,000,000
Temporary equity, shares issued	3,769,505	3,604,827
Temporary equity, shares outstanding	3,769,505	3,604,827
Temporary equity, liquidation preference	$ 11,685,466	$ 11,174,964
Series B1 Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares designated	17,000,000	17,000,000
Temporary equity, shares issued	10,417,966	10,057,597
Temporary equity, shares outstanding	10,417,966	10,057,597
Temporary equity, liquidation preference	$ 16,252,027	$ 15,689,851
Series A Preferred Stock
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares issued	419,859	419,859
Preferred stock, shares outstanding	419,859	419,859
Preferred stock, liquidation preference	$ 625,590	$ 625,590