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Note 15: Commitments and Credit Risk: Standby Letters of Credit: Letters of Credit (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
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Details |  |
Letters of Credit Outstanding, Amount | $ 2,500 | $ 3,600

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_TextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration