XML 64 R52.htm IDEA: XBRL DOCUMENT v3.22.1
Loans and Allowance For Loan Losses - Additional Information (Detail)
12 Months Ended
Dec. 31, 2021
USD ($)
Loans
Dec. 31, 2020
USD ($)
Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest forgone on nonaccrual loans $ 43,000 $ 174,000
Financing Receivable, Troubled Debt Restructuring $ 0 $ 0
Financing Receivable, Modifications, Number of Contracts | Loans 0 0
Increase Decrease In Allowance For Loan And Lease Losses $ 0 $ 0