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

Represents the monetary amount of Effect of derivative instruments on the statements of comprehensive income, during the indicated time period.

No definition available.

Name:	fil_EffectOfDerivativeInstrumentsOnTheStatementsOfComprehensiveIncome
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration