LOANS - Average Balance of Impaired Loans and Income Recognized on Impaired Loans (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
LOANS
Average Investment in Impaired Loans	$ 13,945
Interest Income Recognized on Impaired Loans on a Cash Basis	145
Commercial
LOANS
Average Investment in Impaired Loans	13,343
Interest Income Recognized on Impaired Loans on a Cash Basis	136
Commercial | Real estate loan
LOANS
Average Investment in Impaired Loans	10,735
Interest Income Recognized on Impaired Loans on a Cash Basis	129
Commercial | Commercial and industrial
LOANS
Average Investment in Impaired Loans	1,626
Interest Income Recognized on Impaired Loans on a Cash Basis	4
Commercial | Commercial Construction And Land
LOANS
Average Investment in Impaired Loans	48
Interest Income Recognized on Impaired Loans on a Cash Basis	1
Commercial | Loans secured by farm land
LOANS
Average Investment in Impaired Loans	82
Interest Income Recognized on Impaired Loans on a Cash Basis	0
Commercial | Multi-family (5 or more) residential.
LOANS
Average Investment in Impaired Loans	789
Interest Income Recognized on Impaired Loans on a Cash Basis	0
Commercial | Agricultural loans
LOANS
Average Investment in Impaired Loans	63
Interest Income Recognized on Impaired Loans on a Cash Basis	2
Residential mortgage
LOANS
Average Investment in Impaired Loans	602
Interest Income Recognized on Impaired Loans on a Cash Basis	9
Residential mortgage | Real estate loan | first liens
LOANS
Average Investment in Impaired Loans	565
Interest Income Recognized on Impaired Loans on a Cash Basis	7
Residential mortgage | Real estate loan | junior liens
LOANS
Average Investment in Impaired Loans	37
Interest Income Recognized on Impaired Loans on a Cash Basis	1
Residential mortgage | Home Equity Line of Credit [Member]
LOANS
Average Investment in Impaired Loans	0
Interest Income Recognized on Impaired Loans on a Cash Basis	$ 1