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LOANS HELD FOR INVESTMENT - Performance of Loans Modified During Period (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	$ 32,263	$ 34,208
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		72
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		40
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		112
Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		34,096
Residential Portfolio Segment [Member] | Conventional Loan [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	283	1,139
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Residential Portfolio Segment [Member] | Conventional Loan [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		1,139
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	187	187
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		187
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	30,170	30,170
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		30,170
Construction Loans [Member] | Commercial Portfolio Segment [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	0	0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Construction Loans [Member] | Commercial Portfolio Segment [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Automobile Loan [Member] | Consumer Portfolio Segment [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	829	1,425
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		10
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		10
Automobile Loan [Member] | Consumer Portfolio Segment [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		1,415
Personal Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	112	151
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Personal Loans [Member] | Consumer Portfolio Segment [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		151
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	486	732
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		40
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		40
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		80
Credit Card Receivables [Member] | Consumer Portfolio Segment [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		652
Other Loans [Member] | Consumer Portfolio Segment [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period	$ 196	404
Other Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		22
Other Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Other Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		0
Other Loans [Member] | Consumer Portfolio Segment [Member] | Total Delinquency [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		22
Other Loans [Member] | Consumer Portfolio Segment [Member] | Current [Member]
Financing Receivable Modifications [Line Items]
Financing Receivable Excluding Accrued Interest Modified Period		$ 382

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