Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Summary of Contractual Obligations (Detail)

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Commitments and Contingencies - Summary of Contractual Obligations (Detail)
$ in Thousands
Sep. 30, 2021
USD ($)
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]  
Total $ 91
Less than 1 year 68
1-3 years 23
Vancouver Office Operating Lease [Member]  
Contractual Obligation Fiscal Year Maturity Schedule [Line Items]  
Total 91
Less than 1 year 68
1-3 years $ 23