Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash equivalents:
Amortized Cost	$ 35,494	$ 37,887
Short-term investments:
Amortized Cost	83,004	95,758
Gross Unrealized Gains	18	6
Gross Unrealized Losses	0	(27)
U.S. treasury securities	83,022	95,737
U.S. treasury securities - due within 3 months
Short-term investments:
Amortized Cost	47,925	58,518
Gross Unrealized Gains	17	6
Gross Unrealized Losses	0	(27)
U.S. treasury securities	47,942	58,497
Money market funds
Cash equivalents:
Amortized Cost	32,084	33,767
Fair Value	32,084	33,767
U.S. treasury securities - due within 3 months
Cash equivalents:
Amortized Cost	2,995	3,473
Fair Value	2,996	$ 3,473
Short-term investments:
Gross Unrealized Gains	$ 1