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Other Long-Term Obligations and Commitments - Additional Information (Detail) - USD ($)
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Weighted-average discount rate 7.82%  
Operating lease weighted-average remaining lease term 8 months 5 days 9 months
Operating lease payments $ 365,000 $ 324,000
Operating lease cost $ 347,000 306,000
Lease period description The Company leases office facilities under operating leases and recognizes lease expense on a straight-line basis over the lease term. Lease assets and liabilities are initially recorded at commencement date based on the present value of lease payments over the lease term.  
Rent Expenses $ 346,000 $ 392,000
Lease Payments Due Next year 374,000  
Lease payments due next two years 275,000  
Lease payments due next third years $ 45,000