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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Average Balance of Impaired Loans and Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	$ 10,325	$ 12,135
Interest Income Recognized on Impaired Loans on a Cash Basis	180	1,722
Commercial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	9,673	11,508
Interest Income Recognized on Impaired Loans on a Cash Basis	171	1,702
Commercial | Real estate loan
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	8,967	9,851
Interest Income Recognized on Impaired Loans on a Cash Basis	165	340
Commercial | Commercial and industrial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	519	1,073
Interest Income Recognized on Impaired Loans on a Cash Basis	6	203
Commercial | Commercial Construction And Land
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	47	47
Interest Income Recognized on Impaired Loans on a Cash Basis	0	1
Commercial | Loans secured by farm land
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	80	81
Interest Income Recognized on Impaired Loans on a Cash Basis	0	0
Commercial | Multi-family (5 or more) residential.
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	0	395
Interest Income Recognized on Impaired Loans on a Cash Basis	0	1,156
Commercial | Agricultural loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	60	61
Interest Income Recognized on Impaired Loans on a Cash Basis	0	2
Residential mortgage
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	652	627
Interest Income Recognized on Impaired Loans on a Cash Basis	9	20
Residential mortgage | Real estate loan | first liens
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	585	575
Interest Income Recognized on Impaired Loans on a Cash Basis	5	12
Residential mortgage | Real estate loan | junior liens
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	33	35
Interest Income Recognized on Impaired Loans on a Cash Basis	3	6
Residential mortgage | Home Equity Line of Credit [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Average Investment in Impaired Loans	34	17
Interest Income Recognized on Impaired Loans on a Cash Basis	$ 1	$ 2

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