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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
INVESTMENT SECURITIES
Amortized Cost	$ 164,416	$ 235,591
Gross Unrealized Gains	26	43
Gross Unrealized Losses	(21,246)	(24,135)
Estimated Fair Value	143,196	211,499
Municipal securities
INVESTMENT SECURITIES
Amortized Cost	41,657	47,857
Gross Unrealized Gains	20	16
Gross Unrealized Losses	(6,541)	(7,612)
Estimated Fair Value	35,136	40,261
Agency securities
INVESTMENT SECURITIES
Amortized Cost	47,818	91,858
Gross Unrealized Gains		23
Gross Unrealized Losses	(4,241)	(5,974)
Estimated Fair Value	43,577	85,907
Real estate mortgage investment conduits
INVESTMENT SECURITIES
Amortized Cost	31,424	34,247
Gross Unrealized Losses	(5,759)	(5,370)
Estimated Fair Value	25,665	28,877
Residential mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	13,519	16,512
Gross Unrealized Gains	3
Gross Unrealized Losses	(971)	(1,041)
Estimated Fair Value	12,551	15,471
Other mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	29,998	45,117
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(3,734)	(4,138)
Estimated Fair Value	$ 26,267	$ 40,983

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