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Leases - Summary of Lease Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Total lease costs	$ 1,324	$ 1,426
Weighted average remaining lease term in years	2 years 10 months 20 days	2 years 4 months 20 days
Weighted average discount rate	18.00%	20.00%
Research and development
Total lease costs	$ 268	$ 268
General and administrative
Total lease costs	$ 1,057	$ 1,158

X

- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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X

- Definition

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

+ References

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- Definition

Weighted average remaining lease term for 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/2003/role/exampleRef
-Publisher FASB
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-Topic 842
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