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INVESTMENT SECURITIES (Details 4) - USD ($) $ in Thousands | Sep. 30, 2018 | Mar. 31, 2018
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |
Less than 12 months, Estimated Fair Value |  | $ 65,960 | $ 111,145
Less than 12 months, Unrealized Losses |  | (2,334) | (2,696)
12 months or longer, Estimated Fair Value |  | 122,537 | 100,060
12 months or longer, Unrealized Losses |  | (6,173) | (3,515)
Total, Estimated Fair Value |  | 188,497 | 211,205
Total, Unrealized Losses |  | (8,507) | (6,211)
Municipal securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Less than 12 months, Estimated Fair Value |  | 5,293 | 6,626
Less than 12 months, Unrealized Losses |  | (289) | (236)
12 months or longer, Estimated Fair Value |  | 3,281 | 2,106
12 months or longer, Unrealized Losses |  | (101) | (73)
Total, Estimated Fair Value |  | 8,574 | 8,732
Total, Unrealized Losses |  | (390) | (309)
Agency securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Less than 12 months, Estimated Fair Value |  | 995 | 5,301
Less than 12 months, Unrealized Losses |  | (9) | (112)
12 months or longer, Estimated Fair Value |  | 13,999 | 15,797
12 months or longer, Unrealized Losses |  | (403) | (199)
Total, Estimated Fair Value |  | 14,994 | 21,098
Total, Unrealized Losses |  | (412) | (311)
Real estate mortgage investment conduits |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Less than 12 months, Estimated Fair Value | [1] | 20,660 | 31,922
Less than 12 months, Unrealized Losses | [1] | (759) | (774)
12 months or longer, Estimated Fair Value | [1] | 21,546 | 14,983
12 months or longer, Unrealized Losses | [1] | (1,101) | (581)
Total, Estimated Fair Value | [1] | 42,206 | 46,905
Total, Unrealized Losses | [1] | (1,860) | (1,355)
Residential mortgage-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Less than 12 months, Estimated Fair Value | [2] | 28,498 | 50,941
Less than 12 months, Unrealized Losses | [2] | (1,018) | (1,192)
12 months or longer, Estimated Fair Value | [2] | 51,415 | 37,823
12 months or longer, Unrealized Losses | [2] | (2,703) | (1,523)
Total, Estimated Fair Value | [2] | 79,913 | 88,764
Total, Unrealized Losses | [2] | (3,721) | (2,715)
Other mortgage-backed securities |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |
Less than 12 months, Estimated Fair Value | [3] | 10,514 | 16,355
Less than 12 months, Unrealized Losses | [3] | (259) | (382)
12 months or longer, Estimated Fair Value | [3] | 32,296 | 29,351
12 months or longer, Unrealized Losses | [3] | (1,865) | (1,139)
Total, Estimated Fair Value | [3] | 42,810 | 45,706
Total, Unrealized Losses | [3] | $ (2,124) | $ (1,521)
[1] | Comprised of FHLMC and FNMA issued securities.
[2] | Comprised of FHLMC, FNMA and GNMA issued securities.
[3] | Comprised of SBA issued and CRE secured securities issued by FNMA.

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