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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024
INVESTMENT SECURITIES
Amortized Cost	$ 158,920	$ 164,416
Gross Unrealized Gains	12	26
Gross Unrealized Losses	(21,561)	(21,246)
Estimated Fair Value	137,371	143,196
Municipal securities
INVESTMENT SECURITIES
Amortized Cost	41,651	41,657
Gross Unrealized Gains	1	20
Gross Unrealized Losses	(6,867)	(6,541)
Estimated Fair Value	34,785	35,136
Agency securities
INVESTMENT SECURITIES
Amortized Cost	44,874	47,818
Gross Unrealized Losses	(4,060)	(4,241)
Estimated Fair Value	40,814	43,577
Real estate mortgage investment conduits
INVESTMENT SECURITIES
Amortized Cost	30,677	31,424
Gross Unrealized Losses	(6,005)	(5,759)
Estimated Fair Value	24,672	25,665
Residential mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	12,840	13,519
Gross Unrealized Gains	6	3
Gross Unrealized Losses	(921)	(971)
Estimated Fair Value	11,925	12,551
Other mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	28,878	29,998
Gross Unrealized Gains	5	3
Gross Unrealized Losses	(3,708)	(3,734)
Estimated Fair Value	$ 25,175	$ 26,267

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