Commitments and Contingencies - Additional Information (Detail) - USD ($)		12 Months Ended
	Dec. 14, 2020	Dec. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Operating lease remaining lease term		1 year
Lease expiration period		37 months
Operating lease discount rate		6.50%
Rent expense		$ 94,000	$ 94,000
Purchase Agreement [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Loan Receivable	$ 18,000,000
New Office Lease [Member]
Loss Contingencies [Line Items]
Operating lease beginning date		Jul. 15, 2019
Operating lease ending date		Jul. 31, 2022
Business Law Group [Member]
Loss Contingencies [Line Items]
Sublease Income		$ 4,900