Cash, Cash Equivalents and Investments - Fair value and Amortized cost (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Cash and Cash Equivalents	$ 26,446	$ 94,746
Short-term Investment	75,286	22,287
Long-term Investment		31,042
Cash, cash equivalents and money market funds
Debt Securities, Available-for-sale [Line Items]
Cash and Cash Equivalents	26,446	94,746
Available-for-sale:
Amortized Cost	26,446	94,746
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	26,446	94,746
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Short-term Investment	73,872	15,015
Long-term Investment		30,554
Available-for-sale:
Amortized Cost	74,523	45,665
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(651)	(97)
Estimated Fair Value	73,872	45,568
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Short-term Investment		6,089
Available-for-sale:
Amortized Cost		6,093
Gross Unrealized Gains		0
Gross Unrealized Losses		(4)
Estimated Fair Value		6,089
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Short-term Investment	1,414	1,184
Long-term Investment		488
Available-for-sale:
Amortized Cost	1,424	1,673
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(10)	(1)
Estimated Fair Value	1,414	1,672
Total
Debt Securities, Available-for-sale [Line Items]
Cash and Cash Equivalents	26,446	94,746
Short-term Investment	75,286	22,287
Long-term Investment		31,042
Available-for-sale:
Amortized Cost	102,393	148,177
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(661)	(102)
Estimated Fair Value	$ 101,732	$ 148,075

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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