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LOANS HELD FOR INVESTMENT - Collateral Dependent Lons Individually Evaluated For Purposes of Determing the ACL (Detail) - Collateral Pledged [Member] - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL $ 60,000 $ 68,320
Related Specific Allowance 6,462 5,887
Amortized Cost no ACL 83,854 92,982
Amortized Cost 143,854 161,302
Residential Portfolio Segment [Member] | Loans Insured or Guaranteed by US Government Authorities [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 0 0
Related Specific Allowance 0 0
Amortized Cost no ACL 0 0
Amortized Cost 0 0
Residential Portfolio Segment [Member] | Conventional Loan [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 38,898 51,771
Related Specific Allowance 2,706 3,966
Amortized Cost no ACL 592 781
Amortized Cost 39,490 52,552
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 17,695 5,781
Related Specific Allowance 2,788 670
Amortized Cost no ACL 19,940 34,043
Amortized Cost 37,635 39,824
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 3,070 9,908
Related Specific Allowance 933 1,152
Amortized Cost no ACL 62,366 56,361
Amortized Cost 65,436 66,269
Commercial Portfolio Segment [Member] | Construction Loans [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 0 0
Related Specific Allowance 0 0
Amortized Cost no ACL 956 1,797
Amortized Cost 956 1,797
Consumer Portfolio Segment [Member] | Automobile Loan [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 0 0
Related Specific Allowance 0 0
Amortized Cost no ACL 0 0
Amortized Cost 0 0
Consumer Portfolio Segment [Member] | Finance Leases [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 0 0
Related Specific Allowance 0 0
Amortized Cost no ACL 0 0
Amortized Cost 0 0
Consumer Portfolio Segment [Member] | Personal Loans [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 57 78
Related Specific Allowance 1 1
Amortized Cost no ACL 0 0
Amortized Cost 57 78
Consumer Portfolio Segment [Member] | Credit Card Receivables [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 0 0
Related Specific Allowance 0 0
Amortized Cost no ACL 0 0
Amortized Cost 0 0
Consumer Portfolio Segment [Member] | Other Loans [Member]    
Loans and Leases Receivable Disclosure [Line Items]    
Amortized Cost with ACL 280 782
Related Specific Allowance 34 98
Amortized Cost no ACL 0 0
Amortized Cost $ 280 $ 782