CREDIT QUALITY ASSESSMENT - Collateral Dependent Loans Individually Evaluated for Credit Loss (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	$ 9,743	$ 9,510
Allowance for credit losses related to loans evaluated individually	6,902	6,593
Loans individually evaluated for credit losses without an allowance:	16,454	24,024
Total individually evaluated loans:	26,197	33,534
Unpaid contractual principal balance	29,475	38,399
Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	5,739	6,386
Loans individually evaluated for credit losses without an allowance:	2,627	8,707
Total individually evaluated loans:	8,366	15,093
Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	3,052	2,511
Loans individually evaluated for credit losses without an allowance:	11,204	13,763
Total individually evaluated loans:	14,256	16,274
Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	952	613
Loans individually evaluated for credit losses without an allowance:	2,623	1,554
Total individually evaluated loans:	3,575	2,167
Commercial real estate: | Commercial investor real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	554	1,144
Allowance for credit losses related to loans evaluated individually	134	213
Loans individually evaluated for credit losses without an allowance:	9,389	11,345
Total individually evaluated loans:	9,943	12,489
Unpaid contractual principal balance	10,882	12,857
Commercial real estate: | Commercial investor real estate | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	554	808
Loans individually evaluated for credit losses without an allowance:	2,165	3,498
Total individually evaluated loans:	2,719	4,306
Commercial real estate: | Commercial investor real estate | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	336
Loans individually evaluated for credit losses without an allowance:	7,224	7,847
Total individually evaluated loans:	7,224	8,183
Commercial real estate: | Commercial investor real estate | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Commercial real estate: | Commercial owner-occupied real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	1,989	79
Allowance for credit losses related to loans evaluated individually	1,261	79
Loans individually evaluated for credit losses without an allowance:	4,166	9,227
Total individually evaluated loans:	6,155	9,306
Unpaid contractual principal balance	6,849	11,132
Commercial real estate: | Commercial owner-occupied real estate | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	1,989	79
Loans individually evaluated for credit losses without an allowance:	133	4,775
Total individually evaluated loans:	2,122	4,854
Commercial real estate: | Commercial owner-occupied real estate | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	2,897	4,452
Total individually evaluated loans:	2,897	4,452
Commercial real estate: | Commercial owner-occupied real estate | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	1,136	0
Total individually evaluated loans:	1,136	0
Commercial real estate: | Commercial AD&C
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	650
Allowance for credit losses related to loans evaluated individually	0	504
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	650
Unpaid contractual principal balance	0	695
Commercial real estate: | Commercial AD&C | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	650
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	650
Commercial real estate: | Commercial AD&C | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Commercial real estate: | Commercial AD&C | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Commercial Business
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	7,200	7,637
Allowance for credit losses related to loans evaluated individually	5,507	5,797
Loans individually evaluated for credit losses without an allowance:	1,074	1,396
Total individually evaluated loans:	8,274	9,033
Unpaid contractual principal balance	9,893	10,573
Commercial Business | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	3,196	4,849
Loans individually evaluated for credit losses without an allowance:	329	434
Total individually evaluated loans:	3,525	5,283
Commercial Business | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	3,052	2,175
Loans individually evaluated for credit losses without an allowance:	745	962
Total individually evaluated loans:	3,797	3,137
Commercial Business | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	952	613
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	952	613
Residential real estate: | Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Allowance for credit losses related to loans evaluated individually	0	0
Loans individually evaluated for credit losses without an allowance:	1,487	1,704
Total individually evaluated loans:	1,487	1,704
Unpaid contractual principal balance	1,487	2,778
Residential real estate: | Residential mortgage | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Residential real estate: | Residential mortgage | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	150
Total individually evaluated loans:	0	150
Residential real estate: | Residential mortgage | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	1,487	1,554
Total individually evaluated loans:	1,487	1,554
Residential real estate: | Residential construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Allowance for credit losses related to loans evaluated individually	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Unpaid contractual principal balance	0	0
Residential real estate: | Residential construction | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Residential real estate: | Residential construction | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Residential real estate: | Residential construction | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Allowance for credit losses related to loans evaluated individually	0	0
Loans individually evaluated for credit losses without an allowance:	338	352
Total individually evaluated loans:	338	352
Unpaid contractual principal balance	364	364
Consumer | Non-accruing
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	0	0
Consumer | Non-accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	338	352
Total individually evaluated loans:	338	352
Consumer | Accruing | Restructured
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans individually evaluated for credit losses with an allowance:	0	0
Loans individually evaluated for credit losses without an allowance:	0	0
Total individually evaluated loans:	$ 0	$ 0