Note 15: Derivatives and Hedging Activities: Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Amount of Gain Loss Recognized in Accumulated Other Comprehensive Income
Effect of derivative instruments on the statements of comprehensive income	$ 0	$ 51

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