LOANS AND LEASES - Financial Difficulty Modifications (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 904
Finance Receivable Percentage Of Class Of Loans And Leases	0.0008
Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 0
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	0
Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	725
Extended Maturity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 106
Financing Receivable Restructured Loans Not Considered TDRs Weighted Average Term Extension	12.5 years
Contractual Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 0
Financing Receivable Restructured Loans Not Considered TDRs Weighted Average Interest Rate Reduction	1.66%
Term Extension and Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification		$ 73
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 889
Finance Receivable Percentage Of Class Of Loans And Leases	0.0008
Residential Portfolio Segment [Member] | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 0
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	0
Residential Portfolio Segment [Member] | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	725
Residential Portfolio Segment [Member] | Extended Maturity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 106
Financing Receivable Restructured Loans Not Considered TDRs Weighted Average Term Extension	11.6 years
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 0
Financing Receivable Restructured Loans Not Considered TDRs Weighted Average Interest Rate Reduction	2.00%
Residential Portfolio Segment [Member] | Term Extension and Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 58
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 15
Finance Receivable Percentage Of Class Of Loans And Leases	0.0000
Home equity | Principal Forgiveness
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 0
Financing Receivable, Troubled Debt Restructuring, Increase (Decrease) from Modification	0
Home equity | Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	0
Home equity | Extended Maturity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 0
Financing Receivable Restructured Loans Not Considered TDRs Weighted Average Term Extension	22.6 years
Home equity | Contractual Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 0
Financing Receivable Restructured Loans Not Considered TDRs Weighted Average Interest Rate Reduction	0.31%
Home equity | Term Extension and Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 15