CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Preferred stock, par value (in dollars per share)	$ 0.001
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares issued (in shares)	45,554,841	43,395,563
Common stock, shares outstanding (in shares)	45,554,841	43,395,563
Series B Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares designated (in shares)	10,000,000	10,000,000
Temporary equity, shares issued (in shares)	3,941,704	3,826,055
Temporary equity, shares outstanding (in shares)	3,941,704	3,826,055
Temporary equity, liquidation preference	$ 12,219,282	$ 11,860,771
Series B1 Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares designated (in shares)	17,000,000	17,000,000
Temporary equity, shares issued (in shares)	7,109,305	9,028,085
Temporary equity, shares outstanding (in shares)	7,109,305	9,028,085
Temporary equity, liquidation preference	$ 11,090,516	$ 14,083,813
Series A Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	419,859	419,859
Preferred stock, shares outstanding (in shares)	419,859	419,859
Preferred stock, liquidation preference	$ 625,590	$ 625,590
Series C Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	44,000	44,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0