Note 3: Securities: Repurchase Agreements, Collateral, Policy (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Security Owned and Pledged as Collateral, Fair Value	$ 146,200	$ 156,100
US States and Political Subdivisions Debt Securities
Security Owned and Pledged as Collateral, Fair Value	33,000	32,000
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Security Owned and Pledged as Collateral, Fair Value	77,300	82,000
Collateralized Mortgage Obligations
Security Owned and Pledged as Collateral, Fair Value	34,900	41,900
Other securities
Security Owned and Pledged as Collateral, Fair Value	$ 1,000	$ 200