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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Mar. 31, 2025
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INVESTMENT SECURITIES |  |
Amortized Cost | $ 132,621 | $ 136,940
Gross Unrealized Gains | 19 | 18
Gross Unrealized Losses | (14,193) | (17,522)
Estimated Fair Value | 118,447 | 119,436
Municipal securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 36,919 | 37,280
Gross Unrealized Gains | 3 | 1
Gross Unrealized Losses | (5,081) | (6,262)
Estimated Fair Value | 31,841 | 31,019
Agency securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 32,953 | 32,944
Gross Unrealized Losses | (2,019) | (2,741)
Estimated Fair Value | 30,934 | 30,203
Real estate mortgage investment conduits |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 27,286 | 28,597
Gross Unrealized Losses | (4,396) | (5,107)
Estimated Fair Value | 22,890 | 23,490
Residential mortgage-backed securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 9,592 | 10,802
Gross Unrealized Gains | 13 | 13
Gross Unrealized Losses | (436) | (589)
Estimated Fair Value | 9,169 | 10,226
Other mortgage-backed securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 25,871 | 27,317
Gross Unrealized Gains | 3 | 4
Gross Unrealized Losses | (2,261) | (2,823)
Estimated Fair Value | $ 23,613 | $ 24,498

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