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Note 1: Nature of Operations and Summary of Significant Accounting Policies: Restrictions on Cash and Due From Banks (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Details
Federal Reserve Bank Reserve Fund	$ 69,400	$ 62,600

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- Definition

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

+ References

No definition available.

+ Details

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

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- References

No definition available.

+ Details

Name:	us-gaap_TextBlockAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration