Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	$ 67,463	$ 60,755
U.S. government agency bonds
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	2,977
Recurring
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	95,429	70,011
Recurring \| Level 1
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	21,676	1,258
Recurring \| Level 2
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	73,753	68,753
Recurring \| Level 3
Liabilities that are measured at fair value on a recurring basis
Assets, fair value	0	0
Recurring \| Commercial paper
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	20,931	18,229
Recurring \| Commercial paper \| Cash and Cash Equivalents
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	6,300	8,000
Recurring \| Commercial paper \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Commercial paper \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	20,931	18,229
Recurring \| Commercial paper \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Corporate notes
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	49,845	50,524
Recurring \| Corporate notes \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Corporate notes \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	49,845	50,524
Recurring \| Corporate notes \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| U.S. government agency bonds
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	2,977	0
Recurring \| U.S. government agency bonds \| Level 1
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| U.S. government agency bonds \| Level 2
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	2,977	0
Recurring \| U.S. government agency bonds \| Level 3
Liabilities that are measured at fair value on a recurring basis
Debt securities, fair value	0	0
Recurring \| Money market funds
Liabilities that are measured at fair value on a recurring basis
Money market funds	21,676	1,258
Recurring \| Money market funds \| Level 1
Liabilities that are measured at fair value on a recurring basis
Money market funds	21,676	1,258
Recurring \| Money market funds \| Level 2
Liabilities that are measured at fair value on a recurring basis
Money market funds	0	0
Recurring \| Money market funds \| Level 3
Liabilities that are measured at fair value on a recurring basis
Money market funds	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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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
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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