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Investment Securities Text Figures (Details) (USD $) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Mar. 31, 2013
Schedule of Investments [Line Items] |  |
AFS Fair Value | $ 84,600,000 |
Percentage Available-for-sale Securities | 0.00% |
Held to maturity amortized cost | 12,100,000 |
Held-to-maturity Securities | $ 103,127,000 | $ 124,052,000
Percentage Held-to-maturity Securities | 12.50% |
Number of securities with unrealized loss | 33 | 13
Number of agencies with unrealized loss more than 12 months | 4 |
US Government Agency Securities |  |
Schedule of Investments [Line Items] |  |
Percentage Available-for-Sale, Continuos Unrealized Loss Position | 46.10% |
percentage of securities in a loss position for more than 12 months | 8.20% |
Collateralized Mortgage Backed Securities [Member] |  |
Schedule of Investments [Line Items] |  |
Percentage Available-for-Sale, Continuos Unrealized Loss Position | 24.60% |
Number of MBS with unrealized loss more than 12 months | 2 |
percentage of securities in a loss position for more than 12 months | 10.00% |

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