Note 3: Securities: Repurchase Agreements, Collateral, Policy (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Assets Sold under Agreements to Repurchase, Carrying Amount	$ 118,900	$ 124,200
US Government and Federal Agency Obligations
Assets Sold under Agreements to Repurchase, Carrying Amount	6,100	8,400
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Assets Sold under Agreements to Repurchase, Carrying Amount	38,700	39,800
Collateralized Mortgage Obligations
Assets Sold under Agreements to Repurchase, Carrying Amount	39,600	41,500
US States and Political Subdivisions Debt Securities
Assets Sold under Agreements to Repurchase, Carrying Amount	34,200	34,200
Other Securities
Assets Sold under Agreements to Repurchase, Carrying Amount	$ 300	$ 300