Marketable Securities - Schedule of available-for-sale securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 67,613	$ 62,741
ACL	0	0
Unrealized Gain	0	0
Unrealized Loss	(464)	(116)
Estimated Fair Value	67,149	62,625
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,741	2,547
ACL	0	0
Unrealized Gain	0	0
Unrealized Loss	(3)	(2)
Estimated Fair Value	2,738	2,545
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	40,088	35,385
ACL	0	0
Unrealized Gain	0	0
Unrealized Loss	(439)	(104)
Estimated Fair Value	39,649	35,281
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	18,550	16,081
ACL	0	0
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	18,550	16,081
Asset backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,234	8,728
ACL	0	0
Unrealized Gain	0	0
Unrealized Loss	(22)	(10)
Estimated Fair Value	$ 6,212	$ 8,718

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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