Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	21,018,663	8,818,019
Common stock, shares outstanding	21,018,663	8,818,019
Class A-1 Convertible Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	415,898	0
Preferred stock, shares issued	415,898	0
Preferred stock, shares outstanding	415,898	0
Class A-2 Convertible Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	3,288,390	0
Preferred stock, shares issued	3,288,390	0
Preferred stock, shares outstanding	3,288,390	0