Note 12: Fair Value Measurements: Fair Value, Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
US Government-sponsored Enterprises Debt Securities
Fair value on a recurring basis	$ 3,295	$ 7,270
US States and Political Subdivisions Debt Securities
Fair value on a recurring basis	42,238	42,783
Other Debt Obligations
Fair value on a recurring basis	5,023	5,053
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Fair value on a recurring basis	$ 125,287	$ 110,429