LOANS AND ACL - Troubled Loan Modifications (Details) - USD ($)	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Financing Receivable, Modified [Line Items]
Financing receivable, excluding accrued interest, modified in period, amount	$ 0
Financing receivable, excluding accrued interest, modified, subsequent default	$ 0
Extended Maturity
Financing Receivable, Modified [Line Items]
Total		$ 6,278,000
Commercial Real Estate \| Commercial Real Estate Portfolio Segment \| Extended Maturity
Financing Receivable, Modified [Line Items]
Total		$ 6,278,000

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

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Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

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