INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025
INVESTMENT SECURITIES
Amortized Cost	$ 134,869	$ 136,940
Gross Unrealized Gains	19	18
Gross Unrealized Losses	(16,111)	(17,522)
Estimated Fair Value	118,777	119,436
Municipal securities
INVESTMENT SECURITIES
Amortized Cost	36,966	37,280
Gross Unrealized Gains	3	1
Gross Unrealized Losses	(5,878)	(6,262)
Estimated Fair Value	31,091	31,019
Agency securities
INVESTMENT SECURITIES
Amortized Cost	32,948	32,944
Gross Unrealized Losses	(2,371)	(2,741)
Estimated Fair Value	30,577	30,203
Real estate mortgage investment conduits
INVESTMENT SECURITIES
Amortized Cost	27,977	28,597
Gross Unrealized Losses	(4,843)	(5,107)
Estimated Fair Value	23,134	23,490
Residential mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	10,153	10,802
Gross Unrealized Gains	13	13
Gross Unrealized Losses	(488)	(589)
Estimated Fair Value	9,678	10,226
Other mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	26,825	27,317
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(2,531)	(2,823)
Estimated Fair Value	$ 24,297	$ 24,498

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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