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Loan Receivable and Allowance for Loan and Lease Losses Modification to Loans (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Mortgage Loans on Real Estate, Number of Loans | 9 | 15
Pre-modifcation Outstanding Recorded Investment | $ 5,546 | $ 16,317
Loan modifications recorded investment | 4,163 | 16,095
Financing Receivable, Allowance for Credit Losses | 327 | 81
Consumer Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Mortgage Loans on Real Estate, Number of Loans | 3 | 2
Pre-modifcation Outstanding Recorded Investment | 1,890 | 1,495
Loan modifications recorded investment | 1,418 | 1,430
weighted average rate pre modification | 6.54% | 5.47%
Weighted average rate post modification | 6.38% | 5.42%
Financing Receivable, Allowance for Credit Losses | 26 | 61
Commercial Real Estate Construction Financing Receivable [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Mortgage Loans on Real Estate, Number of Loans |  | 6
Pre-modifcation Outstanding Recorded Investment |  | 8,862
Loan modifications recorded investment |  | 8,840
weighted average rate pre modification |  | 6.81%
Weighted average rate post modification |  | 6.80%
Financing Receivable, Allowance for Credit Losses |  | 2
Commercial Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Mortgage Loans on Real Estate, Number of Loans | 4 | 5
Pre-modifcation Outstanding Recorded Investment | 2,242 | 3,447
Loan modifications recorded investment | 2,210 | 3,315
weighted average rate pre modification | 7.23% | 5.86%
Weighted average rate post modification | 7.21% | 5.87%
Financing Receivable, Allowance for Credit Losses | 264 | 0
One- to four family loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Mortgage Loans on Real Estate, Number of Loans | 2 | 2
Pre-modifcation Outstanding Recorded Investment | 1,414 | 2,513
Loan modifications recorded investment | 535 | 2,510
weighted average rate pre modification | 7.66% | 6.86%
Weighted average rate post modification | 4.00% | 4.21%
Financing Receivable, Allowance for Credit Losses | $ 37 | $ 18

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
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- Definition Indicates the number of mortgages under each classification. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.3) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Paragraph 3 -Article 12 + Details
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