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INVESTMENT SECURITIES - Available for sale (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Mar. 31, 2019
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | $ 145,529 | $ 181,681
Gross Unrealized Gains | 2,953 | 71
Gross Unrealized Losses | (191) | (3,526)
Estimated Fair Value | 148,291 | 178,226
Municipal securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 4,740 | 8,885
Gross Unrealized Gains | 137 | 30
Gross Unrealized Losses | 0 | (34)
Estimated Fair Value | 4,877 | 8,881
Agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 6,009 | 12,426
Gross Unrealized Gains | 17 | 22
Gross Unrealized Losses | (10) | (107)
Estimated Fair Value | 6,016 | 12,341
Real estate mortgage investment conduits |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 42,663 | 40,835
Gross Unrealized Gains | 1,128 | 0
Gross Unrealized Losses | 0 | (673)
Estimated Fair Value | 43,791 | 40,162
Residential mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 58,700 | 77,402
Gross Unrealized Gains | 1,415 | 7
Gross Unrealized Losses | (30) | (1,588)
Estimated Fair Value | 60,085 | 75,821
Other mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Amortized Cost | 33,417 | 42,133
Gross Unrealized Gains | 256 | 12
Gross Unrealized Losses | (151) | (1,124)
Estimated Fair Value | $ 33,522 | $ 41,021

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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 http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss 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 (c) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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- Definition Amortized cost 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 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454 + Details
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