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Investment Securities Investment Securities Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2016 | Mar. 31, 2015 | Mar. 31, 2016 | Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items] |  |  |  |  |  |  |
Held-to-maturity, Amortized Cost |  | $ 14,983 | [1] |  | $ 15,311 | [1] | $ 14,983
Held-to-maturity, Gross Unrealized Gains | [1] | 459 |  |  | 342 |  |
Held-to-maturity, Gross Unrealized Losses | [1] | 0 |  |  | 0 |  |
Held-to-maturity, Fair Value |  | 15,442 | [1] |  | 15,653 | [1] | 15,442
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 53,960 |  |  | 56,486 |  |
Available-for-sale, Gross Unrealized Gains |  | 242 |  |  | 72 |  |
Available-for-sale, Gross Unrealized Losses |  | 190 |  |  | 378 |  |
Available-for-sale, Fair Value |  | 54,012 |  |  | 56,180 |  | $ 54,012
securities amortized cost |  | 68,943 |  |  | 71,797 |  |
Unrealized Gain on Securities |  | 701 |  | $ 414 |  |  |
Unrealized Loss on Securities |  | 190 |  | $ 378 |  |  |
Investments, Fair Value Disclosure |  | 69,454 |  |  | 71,833 |  |
Government National Mortgage Association |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 4,201 |  |  | 4,578 |  |
Available-for-sale, Gross Unrealized Gains |  | 55 |  |  | 45 |  |
Available-for-sale, Gross Unrealized Losses |  | 0 |  |  | 0 |  |
Available-for-sale, Fair Value |  | 4,256 |  |  | 4,623 |  |
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 7,375 |  |  | 7,778 |  |
Available-for-sale, Gross Unrealized Gains |  | 4 |  |  | 0 |  |
Available-for-sale, Gross Unrealized Losses |  | 44 |  |  | 100 |  |
Available-for-sale, Fair Value |  | 7,335 |  |  | 7,678 |  |
Federal National Mortgage Association |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 7,546 |  |  | 7,860 |  |
Available-for-sale, Gross Unrealized Gains |  | 32 |  |  | 0 |  |
Available-for-sale, Gross Unrealized Losses |  | 0 |  |  | 36 |  |
Available-for-sale, Fair Value |  | 7,578 |  |  | 7,824 |  |
Mortgage Backed Securities, Other [Member] |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 45 |  |  | 45 |  |
Available-for-sale, Gross Unrealized Gains |  | 0 |  |  | 0 |  |
Available-for-sale, Gross Unrealized Losses |  | 0 |  |  | 0 |  |
Available-for-sale, Fair Value |  | 45 |  |  | 45 |  |
Mortgage-backed securities |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 19,167 |  |  | 20,261 |  |
Available-for-sale, Gross Unrealized Gains |  | 91 |  |  | 45 |  |
Available-for-sale, Gross Unrealized Losses |  | 44 |  |  | 136 |  |
Available-for-sale, Fair Value |  | 19,214 |  |  | 20,170 |  |
US Government Agency Securities |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 24,601 |  |  | 26,077 |  |
Available-for-sale, Gross Unrealized Gains |  | 151 |  |  | 27 |  |
Available-for-sale, Gross Unrealized Losses |  | 2 |  |  | 35 |  |
Available-for-sale, Fair Value |  | 24,750 |  |  | 26,069 |  |
Other |  |  |  |  |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |  |  |  |  |
Available-for-sale, Amortized Cost |  | 10,192 |  |  | 10,148 |  |
Available-for-sale, Gross Unrealized Gains |  | 0 |  |  | 0 |  |
Available-for-sale, Gross Unrealized Losses |  | 144 |  |  | 207 |  |
Available-for-sale, Fair Value |  | 10,048 |  |  | 9,941 |  |
Government National Mortgage Association |  |  |  |  |  |  |
Schedule of Held-to-maturity Securities [Line Items] |  |  |  |  |  |  |
Held-to-maturity, Amortized Cost | [1] | 2,256 |  |  | 2,379 |  |
Held-to-maturity, Gross Unrealized Gains | [1] | 165 |  |  | 150 |  |
Held-to-maturity, Gross Unrealized Losses | [1] | 0 |  |  | 0 |  |
Held-to-maturity, Fair Value |  | 2,421 |  |  | 2,529 |  |
Federal National Mortgage Association |  |  |  |  |  |  |
Schedule of Held-to-maturity Securities [Line Items] |  |  |  |  |  |  |
Held-to-maturity, Amortized Cost | [1] | 11,727 |  |  | 11,932 |  |
Held-to-maturity, Gross Unrealized Gains | [1] | 274 |  |  | 192 |  |
Held-to-maturity, Gross Unrealized Losses | [1] | 0 |  |  | 0 |  |
Held-to-maturity, Fair Value |  | 12,001 |  |  | 12,124 |  |
Mortgage-backed securities |  |  |  |  |  |  |
Schedule of Held-to-maturity Securities [Line Items] |  |  |  |  |  |  |
Held-to-maturity, Amortized Cost | [1] | 13,983 |  |  | 14,311 |  |
Held-to-maturity, Gross Unrealized Gains | [1] | 439 |  |  | 342 |  |
Held-to-maturity, Gross Unrealized Losses | [1] | 0 |  |  | 0 |  |
Held-to-maturity, Fair Value | [1] | 14,422 |  |  | 14,653 |  |
Corporate Bond Securities [Member] |  |  |  |  |  |  |
Schedule of Held-to-maturity Securities [Line Items] |  |  |  |  |  |  |
Held-to-maturity, Amortized Cost |  | 1,000 | [1] |  | 1,000 |  |
Held-to-maturity, Gross Unrealized Gains | [1] | 20 |  |  | 0 |  |
Held-to-maturity, Gross Unrealized Losses |  | 0 | [1] |  | 0 |  |
Held-to-maturity, Fair Value |  | $ 1,020 |  |  | $ 1,000 |  |
[1] | * The carrying amount and amortized cost are the same for all held-to-maturity securities, as no OTTI has been recorded.

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