Note 19: Commitments and Credit Risk: Letters of Credit (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Details
Letters of Credit Outstanding, Amount	$ 26,400	$ 32,100
Letters of Credit Terms Up to Five Years	25,100	29,500
Letters of Credit Terms Over Five Years	$ 1,300	$ 2,600

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant