Fair Value Measurements - Available For Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair value of available for sale marketable securities
Amortized Cost	$ 31,512	$ 5,996
Gross Unrealized Losses	(28)	(3)
Fair Value	31,484	5,993
U.S. Treasury securities
Fair value of available for sale marketable securities
Amortized Cost	25,482	1,012
Gross Unrealized Losses	(18)	(2)
Fair Value	25,464	1,010
U.S. Government agency securities
Fair value of available for sale marketable securities
Amortized Cost	6,030	4,984
Gross Unrealized Losses	(10)	(1)
Fair Value	$ 6,020	$ 4,983

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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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