Available-for-Sale-Securities - Schedule of Available-for-Sale Securities Reconciliation (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Cost	$ 69,757	$ 91,522
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(69)	(70)
Estimated Fair Value	69,688	91,452
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Cost	26,966	53,135
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(66)	(65)
Estimated Fair Value	26,900	53,070
Commercial Paper
Debt Securities, Available-for-sale [Line Items]
Cost	2,978	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	2,978	0
Money market funds
Debt Securities, Available-for-sale [Line Items]
Cost	22,727	18,124
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	22,727	18,124
Municipal debt securities
Debt Securities, Available-for-sale [Line Items]
Cost	17,086	20,263
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(3)	(5)
Estimated Fair Value	$ 17,083	$ 20,258

Amount, before tax, of unrealized gain 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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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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