Statements of Convertible Preferred Stock - USD ($) $ in Thousands		3 Months Ended
	Jan. 14, 2020	Mar. 31, 2020
Convertible Preferred Stock Rollforward
Issuance of common stock upon public offering, net of underwriters’ discount and other offering costs of $1,733		$ 33,342
Issuance of common stock upon public offering, net of underwriters’ discount and other offering costs of $1,733 (in shares)	11,691,666