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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
INVESTMENT SECURITIES
Amortized Cost	$ 144,814	$ 164,416
Gross Unrealized Gains	17	26
Gross Unrealized Losses	(19,957)	(21,246)
Estimated Fair Value	124,874	143,196
Municipal securities
INVESTMENT SECURITIES
Amortized Cost	37,329	41,657
Gross Unrealized Gains	1	20
Gross Unrealized Losses	(6,794)	(6,541)
Estimated Fair Value	30,536	35,136
Agency securities
INVESTMENT SECURITIES
Amortized Cost	38,937	47,818
Gross Unrealized Losses	(3,352)	(4,241)
Estimated Fair Value	35,585	43,577
Real estate mortgage investment conduits
INVESTMENT SECURITIES
Amortized Cost	29,261	31,424
Gross Unrealized Losses	(5,658)	(5,759)
Estimated Fair Value	23,603	25,665
Residential mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	11,422	13,519
Gross Unrealized Gains	12	3
Gross Unrealized Losses	(751)	(971)
Estimated Fair Value	10,683	12,551
Other mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	27,865	29,998
Gross Unrealized Gains	4	3
Gross Unrealized Losses	(3,402)	(3,734)
Estimated Fair Value	$ 24,467	$ 26,267

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