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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
Interest Rate Swap | Not Designated as Hedging Instrument | Commercial Customers
Derivative, Notional Amount	$ 88,900	$ 92,700

X

- 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

X

- Details

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

X

- Details

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

X

- Details

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