LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowances For Credit Losses (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 19,659	[1]	$ 21,025
Charge-offs		(1,383)		(1,494)
Recoveries		442		682
Net recoveries (charge-offs)		(941)		(812)
Provision		3,425		(554)
Ending balance	[1]	22,517		19,659
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		374
Ending balance				374
Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		20,033
Ending balance				20,033
Commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		3,373		3,591
Charge-offs		(281)		(20)
Recoveries		22		42
Net recoveries (charge-offs)		(259)		22
Provision		1,032		(240)
Ending balance		5,055		3,373
Commercial and industrial | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		909
Ending balance				909
Commercial and industrial | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		4,282
Ending balance				4,282
Commercial Mortgages
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		11,576		13,556
Charge-offs		0		(687)
Recoveries		4		3
Net recoveries (charge-offs)		4		(684)
Provision		1,141		(1,296)
Ending balance		12,026		11,576
Commercial Mortgages | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		(695)
Ending balance				(695)
Commercial Mortgages | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		10,881
Ending balance				10,881
Residential Mortgages
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,845		1,803
Charge-offs		(32)		(17)
Recoveries		0		40
Net recoveries (charge-offs)		(32)		23
Provision		397		19
Ending balance		2,194		1,845
Residential Mortgages | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		(16)
Ending balance				(16)
Residential Mortgages | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		1,829
Ending balance				1,829
Consumer Loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		2,865		2,075
Charge-offs		(1,070)		(770)
Recoveries		416		597
Net recoveries (charge-offs)		(654)		(173)
Provision		855		963
Ending balance		3,242		2,865
Consumer Loans | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		176
Ending balance				176
Consumer Loans | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		3,041
Ending balance				3,041
Unfunded Loan Commitment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		0		0
Provision		(163)		0
Ending balance		919		0
Unfunded Loan Commitment | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 1,082		0
Ending balance				$ 1,082

[1] Effective January 1, 2023, the allowance calculation is based upon Current Expected Credit loss methodology. Prior to January 1, 2023, the allowance calculation was based upon incurred loss methodology. Refer to Note 1 for further discussion.