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Fair Value Measurements Fair Value on a Recurring basis (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Mar. 31, 2015
--- | --- | ---
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Mortgage servicing rights | $ 205 | $ 210
Available-for-sale | 68,192 | 101,185
Other | 46 | 47
Assets, Fair Value Disclosure | 68,397 | 101,395
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Mortgage servicing rights | 0 | 0
Available-for-sale | $ 0 | 0
Other |  | 0
Assets, Fair Value Disclosure | $ 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Mortgage servicing rights | 0 | 0
Available-for-sale | 68,146 | 101,138
Other | 0 | 0
Assets, Fair Value Disclosure | 68,146 | 101,138
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Mortgage servicing rights | 205 | 210
Available-for-sale | 46 | 47
Other |  | 47
Assets, Fair Value Disclosure | 251 | 257
Government National Mortgage Association Certificates and Obligations (GNMA) [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 4,913 | 5,527
Government National Mortgage Association Certificates and Obligations (GNMA) [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Government National Mortgage Association Certificates and Obligations (GNMA) [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale |  | 5,527
Government National Mortgage Association Certificates and Obligations (GNMA) [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 7,867 | 10,588
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale |  | 10,588
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 7,981 | 10,857
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale |  | 10,857
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Mortgage Backed Securities, Other [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 46 | 47
US Government Agency Securities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 36,744 | 57,850
US Government Agency Securities | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
US Government Agency Securities | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale |  | 57,850
US Government Agency Securities | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Other |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 10,641 | 16,316
Other | Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | 0 | 0
Other | Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale |  | 16,316
Other | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Available-for-sale | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Mortgage-Backed Securities -URI http://asc.fasb.org/extlink&oid=6517959 + Details
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=56950315&loc=d3e122625-111746 + Details
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