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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Amount of Gain Loss Recognized in Accumulated Other Comprehensive Income
Effect of derivative instruments on the statements of comprehensive income	$ 64	$ 53	$ 161	$ 37