CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Preferred stock, par value (in dollars per share)	$ 0.001
Preferred stock, shares authorized (in shares)	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)	43,395,563	40,174,821
Common stock, shares outstanding (in shares)	43,395,563	40,174,821
Series B Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized (in shares)	10,000,000	10,000,000
Temporary equity, shares issued (in shares)	3,826,055	3,604,827
Temporary equity, shares outstanding (in shares)	3,826,055	3,604,827
Temporary equity, liquidation preference	$ 11,860,771	$ 11,174,964
Preferred stock, shares authorized (in shares)	10,000,000
Preferred stock, shares issued (in shares)	3,826,055	3,604,827
Preferred stock, shares outstanding (in shares)	3,826,055	3,604,827
Series B1 Preferred Stock
Temporary equity, par value (in dollars per share)	$ 0.001	$ 0.001
Temporary equity, shares authorized (in shares)	17,000,000	17,000,000
Temporary equity, shares issued (in shares)	9,028,085	10,057,597
Temporary equity, shares outstanding (in shares)	9,028,085	10,057,597
Temporary equity, liquidation preference	$ 14,083,813	$ 15,689,851
Preferred stock, shares authorized (in shares)	17,000,000
Preferred stock, shares issued (in shares)	9,028,085	10,057,597
Preferred stock, shares outstanding (in shares)	9,028,085	10,057,597
Series A Convertible 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 Convertible 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
Preferred stock, liquidation preference	$ 0	$ 0

Face amount or stated value per share of common stock.

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