LOANS - Loan Restructuring (Details) $ in Thousands	3 Months Ended		12 Months Ended
LOANS - Loan Restructuring (Details) $ in Thousands	Mar. 31, 2025 USD ($) loan	Mar. 31, 2024 USD ($) loan	Mar. 31, 2025 USD ($)
Summary of loans
Balance \| $	$ 1,440	$ 1,462	$ 49,824
Count \| loan	7	7
Interest Rate Reduction
Summary of loans
Balance \| $	$ 306	$ 0
Count \| loan	2	0
Term Extension
Summary of loans
Balance \| $	$ 1,134	$ 1,462
Count \| loan	5	7
Payment Deferral
Summary of loans
Balance \| $	$ 0	$ 0
Count \| loan	0	0
Commercial Loan Portfolio
Summary of loans
Balance \| $	$ 1,279	$ 746	48,130
Count \| loan	3	4
Commercial Loan Portfolio \| Commercial
Summary of loans
Balance \| $	$ 973	$ 0	2,302
Count \| loan	1	0
Commercial Loan Portfolio \| Commercial other
Summary of loans
Balance \| $	$ 306	$ 746	611
Count \| loan	2	4
Residential real estate: \| Residential first lien
Summary of loans
Balance \| $	$ 150	$ 0	546
Count \| loan	3	0
Residential real estate: \| Other residential
Summary of loans
Balance \| $	$ 11	$ 0	88
Count \| loan	1	0
Lease financing
Summary of loans
Balance \| $	$ 0	$ 716	$ 1,018
Count \| loan	0	3