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Mortgage-backed Securities: Mortgage-backed Securities (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2013
Details |  |  |
Proceeds from sale of mortgage-backed securities available for sale | $ 14,225 us-gaap_ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale | $ 0 us-gaap_ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale | $ 0 us-gaap_ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
Gain (Loss) on Sales of Mortgage Backed Securities (MBS) | 127 us-gaap_GainLossOnSalesOfMortgageBackedSecuritiesMBS | 0 us-gaap_GainLossOnSalesOfMortgageBackedSecuritiesMBS | 0 us-gaap_GainLossOnSalesOfMortgageBackedSecuritiesMBS
Available-for-sale mortgage-backed securities pledged as collateral, Amortized Cost | 1,300 fil_AvailableForSaleMortgageBackedSecuritiesPledgedAsCollateralAmortizedCost | 1,700 fil_AvailableForSaleMortgageBackedSecuritiesPledgedAsCollateralAmortizedCost |
Available-for-sale mortgage-backed securities pledged as collateral, Fair Value | $ 1,300 fil_AvailableForSaleMortgageBackedSecuritiesPledgedAsCollateralFairValue | $ 1,700 fil_AvailableForSaleMortgageBackedSecuritiesPledgedAsCollateralFairValue |

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- Definition Amortized cost of mortgage-backed securities available for sale, that have been pledged as collateral for government public funds held by the Bank. + References No definition available. + Details
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- Definition Fair value of mortgage-backed securities available for sale, that have been pledged as collateral for government public funds held by the Bank. + References No definition available. + Details
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- Definition Net gain (loss) resulting from the sales of securitized, pay-through debt securities collateralized by real estate mortgage loans (mortgages). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(h)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition The cash inflow from the sale of securities issued by a governmental agency or corporation (for example, GNMA or FHLMC) or by private issuers (for example, banks and mortgage banking enterprises) secured by and repaid from underlying mortgages, which were designated as available for sale when acquired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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- Details
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