LOANS HELD FOR INVESTEMNT - Collateral Dependent Lons Individually Evaluated For Purposes of Determing the ACL (Detail) - Collateral Pledged [Member] - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	$ 68,320	$ 154,276
Related Specific Allowance	5,887	14,071
Amortized Cost no ACL	92,982	92,527
Amortized Cost	161,302	246,803
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	51,771	107,174
Related Specific Allowance	3,966	10,570
Amortized Cost no ACL	781	9,545
Amortized Cost	52,552	116,719
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	5,781	21,933
Related Specific Allowance	670	880
Amortized Cost no ACL	34,043	25,289
Amortized Cost	39,824	47,222
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	9,908	17,882
Related Specific Allowance	1,152	1,923
Amortized Cost no ACL	56,361	51,568
Amortized Cost	66,269	69,450
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	0	6,036
Related Specific Allowance	0	500
Amortized Cost no ACL	1,797	6,125
Amortized Cost	1,797	12,161
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	78	146
Related Specific Allowance	1	2
Amortized Cost no ACL	0	0
Amortized Cost	78	146
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	782	1,105
Related Specific Allowance	98	196
Amortized Cost no ACL	0	0
Amortized Cost	782	1,105
PR And VI [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	64,947	147,804
Related Specific Allowance	5,652	13,000
Amortized Cost no ACL	90,249	87,239
Amortized Cost	155,196	235,043
PR And VI [Member] | 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
PR And VI [Member] | Residential Portfolio Segment [Member] | Conventional Loan [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	48,398	100,950
Related Specific Allowance	3,731	9,582
Amortized Cost no ACL	781	7,145
Amortized Cost	49,179	108,095
PR And VI [Member] | Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	5,781	21,933
Related Specific Allowance	670	880
Amortized Cost no ACL	33,575	24,728
Amortized Cost	39,356	46,661
PR And VI [Member] | Commercial Portfolio Segment [Member] | Mortgage Receivable [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	9,908	17,882
Related Specific Allowance	1,152	1,923
Amortized Cost no ACL	54,096	49,241
Amortized Cost	64,004	67,123
PR And VI [Member] | Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	0	6,036
Related Specific Allowance	0	500
Amortized Cost no ACL	1,797	6,125
Amortized Cost	1,797	12,161
PR And VI [Member] | 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
PR And VI [Member] | 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
PR And VI [Member] | Consumer Portfolio Segment [Member] | Personal Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	78	146
Related Specific Allowance	1	2
Amortized Cost no ACL	0	0
Amortized Cost	78	146
PR And VI [Member] | 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
PR And VI [Member] | Consumer Portfolio Segment [Member] | Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	782	857
Related Specific Allowance	98	113
Amortized Cost no ACL	0	0
Amortized Cost	782	857
FL
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	3,373	6,472
Related Specific Allowance	235	1,071
Amortized Cost no ACL	2,733	5,288
Amortized Cost	6,106	11,760
FL | 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
FL | Residential Portfolio Segment [Member] | Conventional Loan [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	3,373	6,224
Related Specific Allowance	235	988
Amortized Cost no ACL	0	2,400
Amortized Cost	3,373	8,624
FL | Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	0	0
Related Specific Allowance	0	0
Amortized Cost no ACL	468	561
Amortized Cost	468	561
FL | Commercial Portfolio Segment [Member] | Mortgage Receivable [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	0	0
Related Specific Allowance	0	0
Amortized Cost no ACL	2,265	2,327
Amortized Cost	2,265	2,327
FL | 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	0	0
Amortized Cost	0	0
FL | 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
FL | 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
FL | Consumer Portfolio Segment [Member] | Personal Loans [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
FL | 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
FL | Consumer Portfolio Segment [Member] | Other Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Amortized Cost with ACL	0	248
Related Specific Allowance	0	83
Amortized Cost no ACL	0	0
Amortized Cost	$ 0	$ 248