Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Commitments and Contingencies - Summary of Other Information Related to Leases (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:        
Operating cash flows from operating leases $ 15 $ 47 $ 68 $ 137
Right-of-use assets obtained in exchange for lease obligations:        
Weighted Average Remaining Lease Term Operating leases 1 year 3 months 29 days 1 year 9 months 1 year 3 months 29 days 1 year 9 months
Weighted Average Discount Rate Operating leases 9.97% 9.90% 9.97% 9.90%