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Investment Securities: Schedule of Investment Securities pledged as collateral (Details) (USD $) | Dec. 31, 2014 | Mar. 31, 2014
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Details |  |
Investment securities pledged as collateral, amortized cost | $ 3,000,000 fil_InvestmentSecuritiesPledgedAsCollateralAmortizedCost | $ 1,000,000 fil_InvestmentSecuritiesPledgedAsCollateralAmortizedCost
Investment securities pledged as collateral, fair value | $ 2,900,000 fil_InvestmentSecuritiesPledgedAsCollateralFairValue | $ 975,000 fil_InvestmentSecuritiesPledgedAsCollateralFairValue

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- Definition The amortized cost of investment securities pledged as collateral for government public funds held by the bank, as of the date indicated. + References No definition available. + Details
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Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The fair value of investment securities pledged as collateral for government public funds held by the bank, as of the date indicated. + References No definition available. + Details
Name: | fil_InvestmentSecuritiesPledgedAsCollateralFairValue
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration