Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Commitments and Contingencies - Summary of Other Information Related to Leases (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases $ 186 $ 176
Right-of-use assets obtained in exchange for lease obligations:    
Operating leases   $ 455
Weighted Average Remaining Lease Term Operating leases 1 year 9 months 7 days 2 years 1 month 28 days
Weighted Average Discount Rate Operating leases 9.97% 9.97%