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Note 9: 401(k) Retirement Plan: 401(k) Retirement Plan (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Details |  |
Defined Contribution Plan, Administrative Expense | $ 341 | $ 279

X
- Definition Amount of administrative expense incurred by defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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