Note 3: Securities: Repurchase Agreements, Collateral, Policy (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Assets Sold under Agreements to Repurchase, Carrying Amount	$ 123,800	$ 143,700
U.S. Government and Federal Agency Obligations
Assets Sold under Agreements to Repurchase, Carrying Amount	1,600	5,600
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Assets Sold under Agreements to Repurchase, Carrying Amount	36,500	47,300
Collateralized Mortgage Obligations
Assets Sold under Agreements to Repurchase, Carrying Amount	51,800	55,700
US States and Political Subdivisions Debt Securities
Assets Sold under Agreements to Repurchase, Carrying Amount	33,800	34,900
Other securities
Assets Sold under Agreements to Repurchase, Carrying Amount	$ 200	$ 300