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NOTE 7: ACQUIRED LOANS, LOSS SHARING AGREEMENTS AND FDIC INDEMNIFICATION ASSETS: Business Combinations Policy (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
InterBank |  |
Premium recorded in conjunction with fair value of acquired loans and amount amortized to yield | $ 53 | $ 76
Valley Bank |  |
Premium recorded in conjunction with fair value of acquired loans and amount amortized to yield | $ 11 | $ 80

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- Definition Represents the monetary amount of Premium recorded in conjunction with fair value of acquired loans and amount amortized to yield, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=fil_InterBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=fil_ValleyBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |