Marketable Securities - Unrealized Gains and Losses Related to our Available-for-Sale Marketable Securities (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 14,085
Unrealized Gains	1
Unrealized Losses	(11)
Fair Value	14,075
Commercial paper
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	6,133
Unrealized Gains	0
Unrealized Losses	(5)
Fair Value	6,128
U.S. agency securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	1,983
Unrealized Gains	1
Unrealized Losses	0
Fair Value	1,984
U.S. government securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	5,969
Unrealized Gains	0
Unrealized Losses	(6)
Fair Value	$ 5,963

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).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, 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
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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- Definition

Amount excluding accrued interest, 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/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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