Cash, Cash Equivalents and Investments - Securities Classified as Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cash and cash equivalents:
Amortized Cost	$ 53,408	$ 72,428
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	53,408	72,428
Short-term investments:
Amortized Cost	27,713	44,267
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(109)	(7)
Fair Value	27,604	44,261
Amortized Cost	81,121	116,695
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(109)	(7)
Fair Value	81,012	116,689
Commercial paper
Short-term investments:
Amortized Cost	16,931	31,936
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(49)	(2)
Fair Value	16,882	31,935
U.S. government-sponsored agency bonds
Short-term investments:
Amortized Cost	8,768
Gross Unrealized Gains	0
Gross Unrealized Losses	(45)
Fair Value	8,723
Corporate bonds
Short-term investments:
Amortized Cost	1,011	7,025
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(12)	(3)
Fair Value	999	7,022
Asset-backed securities
Short-term investments:
Amortized Cost	1,003	5,306
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(3)	(2)
Fair Value	1,000	5,304
Cash
Cash and cash equivalents:
Amortized Cost	2,975	1,253
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	2,975	1,253
Money market funds
Cash and cash equivalents:
Amortized Cost	50,433	71,175
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 50,433	$ 71,175