Common Stock (Details) - USD ($)		1 Months Ended			3 Months Ended
	Mar. 26, 2021	Mar. 31, 2021	Nov. 30, 2020	Feb. 28, 2019	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2018	Dec. 31, 2021	Nov. 09, 2020	Feb. 28, 2018
Class Of Stock [Line Items]
Common stock, shares authorized (in shares)					50,000,000			50,000,000
Common stock, par value (in dollars per share)					$ 0.001			$ 0.001
Common stock, shares issued (in shares)	6,900,000				34,474,710			34,475,000
Common stock, shares outstanding (in shares)					34,474,710			34,475,000
Proceeds from issuance of common stock, net of issuance costs	$ 55,200,000				$ 0	$ 54,980,000
Net proceeds from public offering	$ 51,700,000
Common stock value available for issuance in connection with future stock sales					213,000,000
Common stock sales agreement, aggregate offering amount					34,000			$ 34,000
Leerink Capital Partners LLC
Class Of Stock [Line Items]
Common stock value available for issuance in connection with future stock sales					$ 22,200,000
Stock issued during period, shares (in shares)							470,777
Net proceeds from issuance of common stock							$ 10,300,000
Leerink Capital Partners LLC | Common Stock
Class Of Stock [Line Items]
Stock issued during period, shares (in shares)		330,688	1,070,175	1,251,555
Net proceeds from issuance of common stock		$ 3,400,000	$ 5,900,000	$ 7,500,000
Over Allotment Option
Class Of Stock [Line Items]
Warrants to purchase of common stock shares (in shares)	900,000
Minimum
Class Of Stock [Line Items]
Shares issued, price per share (in dollars per share)	$ 8.00
Maximum
Class Of Stock [Line Items]
Offering, issuance and sale of stocks and securities, shelf registration									$ 300,000,000
Maximum | Leerink Capital Partners LLC
Class Of Stock [Line Items]
Common stock sales agreement, aggregate offering amount										$ 50,000,000
Common stock sales agreement commission, percentage										3.00%