Note 15: Disclosures About Fair Value of Financial Instruments: Fair Value of Financial Instruments Policy (Policies)	12 Months Ended
Dec. 31, 2017
Policies
Fair Value of Financial Instruments Policy	Fair Value of Financial Instruments The following methods were used to estimate the fair value of all other financial instruments recognized in the accompanying statements of financial condition at amounts other than fair value.

Represents the textual narrative disclosure of Fair Value of Financial Instruments Policy, during the indicated time period.

No definition available.

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Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration