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Note 3: Loans and Allowance For Loan Losses: Loans Serviced for Others (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Loans serviced for others | $ 254,000 | $ 266,200
Unused lines of Credit |  |
Loans serviced for others | $ 37,800 | $ 60,500

X
- Definition Represents the monetary amount of Loans serviced for others, during the indicated time period. + References No definition available. + Details
Name: | fil_LoansServicedForOthers
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_UnusedLinesOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |