LOANS AND LEASES - Financial Difficulty Modifications, Payment Status (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)
Financing Receivable, Past Due [Line Items]
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 200	$ 200
Financial Asset, 1 to 29 Days Past Due
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	5,959	5,959
Financial Receivables, Financial Difficulty Modifications	5,959	5,959
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	217	217
Financial Receivables, Financial Difficulty Modifications	217	217
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Residential Portfolio Segment [Member] | Financial Asset, 1 to 29 Days Past Due
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	970	970
Financial Receivables, Financial Difficulty Modifications	970	970
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	217	217
Financial Receivables, Financial Difficulty Modifications	217	217
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Home equity | Financial Asset, 1 to 29 Days Past Due
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	184	184
Financial Receivables, Financial Difficulty Modifications	184	184
Home equity | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Home equity | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Home equity | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Commercial | Financial Asset, 1 to 29 Days Past Due
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	4,805	4,805
Financial Receivables, Financial Difficulty Modifications	4,805	4,805
Commercial | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Commercial | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	0	0
Commercial | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Financial Receivables, Financial Difficulty Modifications	0	0
Financial Receivables, Financial Difficulty Modifications	$ 0	$ 0