Note 9: 401(k) Retirement Plan: 401(k) Retirement Plan (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Details
Defined Contribution Plan, Administrative Expense	$ 273	$ 205	$ 552	$ 448

Amount of administrative expense incurred by defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanAdministrativeExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration