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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
INVESTMENT SECURITIES
Amortized Cost	$ 149,629	$ 164,416
Gross Unrealized Gains	18	26
Gross Unrealized Losses	(16,694)	(21,246)
Estimated Fair Value	132,953	143,196
Municipal securities
INVESTMENT SECURITIES
Amortized Cost	37,377	41,657
Gross Unrealized Gains	2	20
Gross Unrealized Losses	(5,487)	(6,541)
Estimated Fair Value	31,892	35,136
Agency securities
INVESTMENT SECURITIES
Amortized Cost	41,910	47,818
Gross Unrealized Losses	(2,929)	(4,241)
Estimated Fair Value	38,981	43,577
Real estate mortgage investment conduits
INVESTMENT SECURITIES
Amortized Cost	29,973	31,424
Gross Unrealized Losses	(4,929)	(5,759)
Estimated Fair Value	25,044	25,665
Residential mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	12,092	13,519
Gross Unrealized Gains	12	3
Gross Unrealized Losses	(570)	(971)
Estimated Fair Value	11,534	12,551
Other mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	28,277	29,998
Gross Unrealized Gains	4	3
Gross Unrealized Losses	(2,779)	(3,734)
Estimated Fair Value	$ 25,502	$ 26,267

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