Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail)
3 Months Ended 6 Months Ended
Dec. 16, 2022
Nov. 19, 2018
USD ($)
ft²
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Other Commitments [Line Items]            
Consolidated rent expense     $ 29,000 $ 28,000 $ 58,000 $ 57,000
Indemnification obligations     $ 0   0  
Expenses related to indemnification issues         $ 0  
Vancouver Office Operating Lease [Member] | Vancouver, British Columbia [Member]            
Other Commitments [Line Items]            
Lease agreement commencement date Feb. 01, 2023 Feb. 01, 2019        
Area of office space leased | ft²   2,367        
Operating lease, term of contract   4 years        
Lessee, Operating Lease, Existence of Option to Extend [true false] true          
Operating lease, extension term 2 years          
Annual rent expense   $ 100,000