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Other Long-Term Obligations and Commitments - Additional Information (Detail) - USD ($)
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]        
Lease period description The Company leases office facilities under operating leases and recognizes lease expense on a straight-line basis over the lease term. Leases assets and liabilities are initially recorded at commencement date based on the present value of lease payments over the lease term.      
Weighted-average discount rate 5.50%      
Operating lease weighted-average remaining lease term 10 months      
Finance lease remaining lease term 13 months      
Finance lease amortization and interest expense $ 1,828      
Operating lease payments 152,000      
Operating lease cost 144,000      
Finance lease payments 1,913      
Lease payments with in one year       $ 461,000
Lease payments due next year     $ 89,000  
Operating leases, rent expense $ 163,000 $ 155,000