Statement of Convertible Preferred Stock $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) shares
Increase (Decrease) in Temporary Equity
Balance at end of period (in shares) | shares	0
Series A Convertible Preferred Stock
Increase (Decrease) in Temporary Equity
Balance at beginning of period | $	$ 6,254
Balance at beginning of period (in shares) | shares	3,093,898
Conversion of convertible preferred stock into common stock upon closing of initial public offering | $	$ (6,254)
Conversion of convertible preferred stock into common stock upon closing of initial public offering (in shares) | shares	(3,093,898)
Series B Convertible Preferred Stock
Increase (Decrease) in Temporary Equity
Balance at beginning of period | $	$ 29,156
Balance at beginning of period (in shares) | shares	4,001,848
Issuance of convertible preferred stock for cash, net of issuance costs | $	$ 2,897
Issuance of convertible preferred stock for cash, net of issuance costs (in shares) | shares	442,925
Conversion of convertible preferred stock into common stock upon closing of initial public offering | $	$ (32,053)
Conversion of convertible preferred stock into common stock upon closing of initial public offering (in shares) | shares	(4,444,773)
Balance at end of period | $	$ 0