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Commitments and Contingencies - Additional Information (Details) $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 05, 2021 USD ($)	Sep. 30, 2019 ft²	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Operating lease office space | ft²		10,823
Lease expiration date		Jul. 31, 2021
Lease commencement date	Aug. 01, 2021
Operating lease right-of-use assets	$ 1,500		$ 1,612		$ 1,612		$ 518
Lease, borrowing rate	13.59%
Operating leases, rent expense			$ 175	$ 175	$ 528	$ 488
Total base rent under lease agreement	$ 1,600
Operating lease, discount rate			16.40%		16.40%
Operating lease term	37 months		2 years 10 months 24 days		2 years 10 months 24 days

X

- Definition

Lease Commencement Date

+ References

No definition available.

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- Definition

Total base rent under lease agreement.

+ References

No definition available.

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X

- Definition

Area of land held.

+ References

No definition available.

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- References

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X

- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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X

- Definition

Discount rate used by lessee to determine present value of operating lease payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)(3)
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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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X

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

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