LOANS - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	2	4	7
Troubled debt restructurings, post-modification recorded investment	$ 316	$ 222	$ 7,271
Commercial | Commercial and industrial | Principal and interest payment deferral non-COVID related
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	0	2
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 0	$ 4,831
Commercial | Commercial and industrial | Interest only payments for a nine-month period
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	0	1
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 0	$ 240
Commercial | Multi-family (5 or more) residential | Principal and interest payment deferral non-COVID related
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	0	3
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 0	$ 2,170
Commercial | Loans secured by farm land | Deferral of principal and interest payments for 12 months with a balloon payment at maturity
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	1	0	0
Troubled debt restructurings, post-modification recorded investment	$ 268	$ 0	$ 0
Residential mortgage | Real estate loan | first liens | Reduced monthly payments for a fifteen-month period
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	1	0
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 116	$ 0
Residential mortgage | Real estate loan | first liens | Monthly Payment Reduction and Extended Maturity Date
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	1	0
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 12	$ 0
Residential mortgage | Real estate loan | junior liens
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	1	0	0
Troubled debt restructurings, post-modification recorded investment	$ 48	$ 0	$ 0
Residential mortgage | Real estate loan | junior liens | New Loan at Lower Than Risk-adjusted Market Rate to Borrower
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	0	1
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 0	$ 30
Residential mortgage | Home equity lines of credit | Monthly Payment Reduction and Extended Maturity Date
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	1	0
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 24	$ 0
Residential mortgage | Home equity lines of credit | Reduced monthly payments for eighteen-month period
Troubled Debt Restructurings
Troubled debt restructurings, number of contracts	0	1	0
Troubled debt restructurings, post-modification recorded investment	$ 0	$ 70	$ 0