Note 9: Premises and Equipment: Lessee, Operating Lease, Disclosure (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Number of Lessee Lease Agreements	17
Right of use asset and corresponding lease liability	$ 9,500
Lease expense related to ATMs	$ 73
Weighted-average lease term	11.1 years
Operating Lease, Weighted Average Discount Rate, Percent	3.40%
Minimum
Lessee Expected Lease Terms	3.3 years
Maximum
Lessee Expected Lease Terms	19.9 years