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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Loan Modifications (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Other-Than-Insignificant Payment Delay | Commercial real estate
Financing Receivable, Modified [Line Items]
Amortized cost basis	$ 322		$ 1,504
% of Total Class of Financing Receivables	0.05%		0.21%
Other-Than-Insignificant Payment Delay | Residential mortgage
Financing Receivable, Modified [Line Items]
Amortized cost basis	$ 120	$ 82	$ 275	$ 151
% of Total Class of Financing Receivables	0.09%	0.06%	0.21%	0.12%
Other-Than-Insignificant Payment Delay | Commercial and industrial
Financing Receivable, Modified [Line Items]
Amortized cost basis			$ 801
% of Total Class of Financing Receivables			0.73%
Other-Than-Insignificant Payment Delay | Other consumer
Financing Receivable, Modified [Line Items]
Amortized cost basis			$ 2
% of Total Class of Financing Receivables			0.04%
Term Extension | Commercial real estate
Financing Receivable, Modified [Line Items]
Amortized cost basis		$ 2,300		$ 4,564
% of Total Class of Financing Receivables		1.80%		0.61%
Term Extension | Residential mortgage
Financing Receivable, Modified [Line Items]
Amortized cost basis			$ 19
% of Total Class of Financing Receivables			0.01%
Term Extension | Commercial and industrial
Financing Receivable, Modified [Line Items]
Amortized cost basis			$ 745	$ 2,300
% of Total Class of Financing Receivables			0.68%	1.80%
Term Extension | Agricultural operating
Financing Receivable, Modified [Line Items]
Amortized cost basis			$ 191
% of Total Class of Financing Receivables			0.65%

X

- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

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