Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Summary of Other Information Related to Leases (Detail)

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Commitments and Contingencies - Summary of Other Information Related to Leases (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Cash paid for amounts included in the measurement of lease liabilities:        
Operating cash flows to operating leases $ 13 $ 16 $ 28 $ 29
Right-of-use assets obtained in exchange for lease obligations:        
Weighted Average Remaining Lease Term Operating leases 1 year 6 months 29 days 6 months 29 days 1 year 6 months 29 days 6 months 29 days
Weighted Average Discount Rate Operating leases 8.98% 9.97% 8.98% 9.97%