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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Mar. 31, 2025
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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