Balance Sheets (unaudited) (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	45,797,195	5,194,518
Common stock, shares outstanding	45,350,687	4,293,039
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Series A-1 Convertible Preferred Stock
Convertible preferred stock, shares authorized		63,023,258
Convertible preferred stock, shares, issued		63,023,258
Convertible preferred stock, shares, outstanding		63,023,258
Series A-2 Convertible Preferred Stock
Convertible preferred stock, shares authorized		22,209,301
Convertible preferred stock, shares, issued		22,209,301
Convertible preferred stock, shares, outstanding		22,209,301
Series B Convertible Preferred Stock
Convertible preferred stock, shares authorized		33,592,907
Convertible preferred stock, shares, issued		33,592,907
Convertible preferred stock, shares, outstanding		33,592,907

Face amount or stated value per share of common stock.

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