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INVESTMENT SECURITIES - Held to maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
INVESTMENT SECURITIES
Amortized Cost	$ 253,100	$ 39,574
Gross Unrealized Losses	(17,071)	(1,354)
Estimated Fair Value	236,029	38,220
Municipal securities
INVESTMENT SECURITIES
Amortized Cost	10,368	10,391
Gross Unrealized Losses	(1,422)	(509)
Estimated Fair Value	8,946	9,882
Agency securities
INVESTMENT SECURITIES
Amortized Cost	45,277	7,688
Gross Unrealized Losses	(2,450)	(220)
Estimated Fair Value	42,827	7,468
Real estate mortgage investment conduits
INVESTMENT SECURITIES
Amortized Cost	39,394	9,207
Gross Unrealized Losses	(2,457)	(141)
Estimated Fair Value	36,937	9,066
Residential mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	137,343	6,175
Gross Unrealized Losses	(8,883)	(119)
Estimated Fair Value	128,460	6,056
Other mortgage-backed securities
INVESTMENT SECURITIES
Amortized Cost	20,718	6,113
Gross Unrealized Losses	(1,859)	(365)
Estimated Fair Value	$ 18,859	$ 5,748

X

- Definition

Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

+ References

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