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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Mar. 31, 2023
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INVESTMENT SECURITIES |  |
Amortized Cost | $ 231,308 | $ 235,591
Gross Unrealized Gains | 29 | 43
Gross Unrealized Losses | (27,018) | (24,135)
Estimated Fair Value | 204,319 | 211,499
Municipal securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 47,810 | 47,857
Gross Unrealized Gains | 24 | 16
Gross Unrealized Losses | (8,123) | (7,612)
Estimated Fair Value | 39,711 | 40,261
Agency securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 91,972 | 91,858
Gross Unrealized Gains |  | 23
Gross Unrealized Losses | (6,826) | (5,974)
Estimated Fair Value | 85,146 | 85,907
Real estate mortgage investment conduits |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 33,473 | 34,247
Gross Unrealized Losses | (6,210) | (5,370)
Estimated Fair Value | 27,263 | 28,877
Residential mortgage-backed securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 15,738 | 16,512
Gross Unrealized Losses | (1,201) | (1,041)
Estimated Fair Value | 14,537 | 15,471
Other mortgage-backed securities |  |
INVESTMENT SECURITIES |  |
Amortized Cost | 42,315 | 45,117
Gross Unrealized Gains | 5 | 4
Gross Unrealized Losses | (4,658) | (4,138)
Estimated Fair Value | $ 37,662 | $ 40,983

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
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