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Fair Value Measurements Fair Value on a Recurring basis (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Mar. 31, 2015
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Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Mortgage servicing rights | $ 204 | $ 210
Government National Mortgage Asscociation, AFS, Fair Value Disclosure | 5,221 | 5,527
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure | 9,944 | 10,588
Federal National Mortgage Corporation, AFS, Fair Value Disclosure | 10,396 | 10,857
Other | 46 | 47
US Government Agency securities | 50,708 | 57,850
Other Securities, AFS, Fair Value Disclosure | 10,657 | 16,316
Available-for-sale | 86,972 | 101,185
Assets, Fair Value Disclosure | 87,176 | 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
Government National Mortgage Asscociation, AFS, Fair Value Disclosure | 0 | 0
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure | 0 | 0
Federal National Mortgage Corporation, AFS, Fair Value Disclosure | $ 0 | 0
Other |  | 0
US Government Agency securities | $ 0 | 0
Other Securities, AFS, Fair Value Disclosure | 0 | 0
Available-for-sale | 0 | 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
Government National Mortgage Asscociation, AFS, Fair Value Disclosure | 5,221 | 5,527
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure | 9,944 | 10,588
Federal National Mortgage Corporation, AFS, Fair Value Disclosure | 10,396 | 10,857
Other | 0 | 0
US Government Agency securities | 50,708 | 57,850
Other Securities, AFS, Fair Value Disclosure | 10,657 | 16,316
Available-for-sale | 86,926 | 101,138
Assets, Fair Value Disclosure | 86,926 | 101,138
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Mortgage servicing rights | 204 | 210
Government National Mortgage Asscociation, AFS, Fair Value Disclosure | 0 | 0
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure | 0 | 0
Federal National Mortgage Corporation, AFS, Fair Value Disclosure | 0 | 0
Other | 46 | 47
US Government Agency securities | 0 | 0
Other Securities, AFS, Fair Value Disclosure | 0 | 0
Available-for-sale | 46 | 47
Assets, Fair Value Disclosure | $ 250 | $ 257

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- Definition Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure + References No definition available. + Details
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- Definition Federal National Mortgage Corporation, AFS, Fair Value Disclosure + References No definition available. + Details
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- Definition Government National Mortgage Asscociation, AFS, Fair Value Disclosure + References No definition available. + Details
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- Definition Other Securities, AFS, Fair Value Disclosure + References No definition available. + Details
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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 The fair value as of the balance sheet date of firm holdings in debt obligations issued by the US government including short-term Treasury bills, medium-term Treasury notes, and long-term Treasury bonds, as well as debt issued by agencies. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 + 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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