Note 1: Nature of Operations and Summary of Significant Accounting Policies: Restriction On Cash and Due From Banks (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Details
Federal Reserve Bank Reserve Fund	$ 59,100	$ 53,800

Represents the monetary amount of Federal Reserve Bank Reserve Fund, as of the indicated date.

No definition available.

Name:	fil_FederalReserveBankReserveFund
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant