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Loan Receivable and Allowance for Loan and Lease Losses Non performing TDRs (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Jun. 30, 2013 | Jun. 30, 2012
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | 2 | 1
Financing Receivable, Modifications, Pre-Modification Recorded Investment | $ 1,470 | $ 540
Financing Receivable, Modifications, Post-Modification Recorded Investment | 1,403 | 540
weighted average rate pre modification |  | 6.75%
Weighted average rate post modification |  | 4.00%
One- to four family loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | 1 | 1
Financing Receivable, Modifications, Pre-Modification Recorded Investment | 551 | 540
Financing Receivable, Modifications, Post-Modification Recorded Investment | 484 | 540
weighted average rate pre modification | 7.50% | 6.75%
Weighted average rate post modification | 5.50% | 4.00%
Commercial Loan [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Modifications, Number of Contracts | 1 |
Financing Receivable, Modifications, Pre-Modification Recorded Investment | 919 |
Financing Receivable, Modifications, Post-Modification Recorded Investment | $ 919 |
weighted average rate pre modification | 6.00% |
Weighted average rate post modification | 6.00% |

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- Definition Weighted average rate post modification on TDR loans + References No definition available. + Details
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- Definition weighted average rate pre modification rates on TDR loans + References No definition available. + Details
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- Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524 + Details
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- Definition Amount of investment in financing receivables (after modification) modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524 + Details
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- Definition Amount of investment in financing receivables (before modification) modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524 + Details
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