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Note 15: Derivatives and Hedging Activities: Loans With Interest Rate Swap (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
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Interest Rate Swap | Not Designated as Hedging Instrument | Commercial Customers |  |
Derivative, Notional Amount | $ 88,900 | $ 92,700

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_MajorCustomersAxis=fil_CommercialCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |