Note 11: Fair Value Measurements: Fair Value Inputs, Assets, Quantitative Information (Details) - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2017
Impaired loans (collateral dependent)
Fair Value Asset Liability Measured On Nonrecurring Basis With Unobservable Inputs	$ 529
Impaired loans (collateral dependent) | Internal Valuation
Fair Value Measurements Nonrecurring Valuation Technique	Internal Valuation
Impaired loans (collateral dependent) | Internal Valuation | Discount to reflect realizable value
Fair Value Measurements Nonrecurring Unobservable Inputs	Discount to reflect realizable value
Fair Value Measurements Nonrecurring Range of discounts Applied	n/a
Fair Value Measurements Nonrecurring Weighted Average Discount Applied	0.0%
Foreclosed and Repossessed Assets
Fair Value Asset Liability Measured On Nonrecurring Basis With Unobservable Inputs	$ 4,142	$ 3,100
Foreclosed and Repossessed Assets | Third party appraisal
Fair Value Measurements Nonrecurring Valuation Technique	Third party appraisal	Third party appraisal
Foreclosed and Repossessed Assets | Third party appraisal | Marketability discount
Fair Value Measurements Nonrecurring Unobservable Inputs	Marketability discount	Marketability discount
Fair Value Measurements Nonrecurring Range of discounts Applied	0.0% - 78.4%	0.0% - 66.4%
Fair Value Measurements Nonrecurring Weighted Average Discount Applied	33.8%	40.6%