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INVESTMENT SECURITIES (Details 4) - USD ($) $ in Thousands | Jun. 30, 2018 | Mar. 31, 2018
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Less than 12 months, Estimated Fair Value |  | $ 100,882 |  | $ 111,145 |
Less than 12 months, Unrealized Losses |  | (3,021) |  | (2,696) |
12 months or longer, Estimated Fair Value |  | 96,860 |  | 100,060 |
12 months or longer, Unrealized Losses |  | (4,156) |  | (3,515) |
Total, Estimated Fair Value |  | 197,742 |  | 211,205 |
Total, Unrealized Losses |  | (7,177) |  | (6,211) |
Municipal securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Less than 12 months, Estimated Fair Value |  | 6,595 |  | 6,626 |
Less than 12 months, Unrealized Losses |  | (243) |  | (236) |
12 months or longer, Estimated Fair Value |  | 2,100 |  | 2,106 |
12 months or longer, Unrealized Losses |  | (65) |  | (73) |
Total, Estimated Fair Value |  | 8,695 |  | 8,732 |
Total, Unrealized Losses |  | (308) |  | (309) |
Agency securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Less than 12 months, Estimated Fair Value |  | 4,282 |  | 5,301 |
Less than 12 months, Unrealized Losses |  | (123) |  | (112) |
12 months or longer, Estimated Fair Value |  | 10,808 |  | 15,797 |
12 months or longer, Unrealized Losses |  | (189) |  | (199) |
Total, Estimated Fair Value |  | 15,090 |  | 21,098 |
Total, Unrealized Losses |  | (312) |  | (311) |
Real estate mortgage investment conduits |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Less than 12 months, Estimated Fair Value |  | 28,220 | [1] | 31,922 | [2]
Less than 12 months, Unrealized Losses |  | (876) | [1] | (774) | [2]
12 months or longer, Estimated Fair Value |  | 16,407 | [1] | 14,983 | [2]
12 months or longer, Unrealized Losses |  | (718) | [1] | (581) | [2]
Total, Estimated Fair Value |  | 44,627 | [1] | 46,905 | [2]
Total, Unrealized Losses |  | (1,594) | [1] | (1,355) | [2]
Residential mortgage-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Less than 12 months, Estimated Fair Value | [1] | 48,120 |  | 50,941 |
Less than 12 months, Unrealized Losses | [1] | (1,415) |  | (1,192) |
12 months or longer, Estimated Fair Value | [1] | 36,251 |  | 37,823 |
12 months or longer, Unrealized Losses | [1] | (1,705) |  | (1,523) |
Total, Estimated Fair Value | [1] | 84,371 |  | 88,764 |
Total, Unrealized Losses | [1] | (3,120) |  | (2,715) |
Other mortgage-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Less than 12 months, Estimated Fair Value | [3] | 13,665 |  | 16,355 |
Less than 12 months, Unrealized Losses | [3] | (364) |  | (382) |
12 months or longer, Estimated Fair Value | [3] | 31,294 |  | 29,351 |
12 months or longer, Unrealized Losses | [3] | (1,479) |  | (1,139) |
Total, Estimated Fair Value | [3] | 44,959 |  | 45,706 |
Total, Unrealized Losses | [3] | $ (1,843) |  | $ (1,521) |
[1] | Comprised of FHLMC, FNMA and GNMA issued securities.
[2] | Comprised of FHLMC and FNMA issued securities.
[3] | Comprised of SBA issued and CRE secured securities issued by FNMA.

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