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Note 15: Derivatives and Hedging Activities: Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Amount of Gain Loss Recognized in Accumulated Other Comprehensive Income |  |  |  |
Effect of derivative instruments on the statements of comprehensive income | $ 0 | $ 64 | $ 0 | $ 161

X
- Definition Represents the monetary amount of Effect of derivative instruments on the statements of comprehensive income, during the indicated time period. + References No definition available. + Details
Name: | fil_EffectOfDerivativeInstrumentsOnTheStatementsOfComprehensiveIncome
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_BalanceSheetLocationAxis=fil_AmountOfGainLossRecognizedInAccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |