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Note 12. Share Owners' Equity - Textuals (Details) - USD ($)	12 Months Ended			68 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2021	Nov. 10, 2020	Nov. 08, 2018	Aug. 23, 2017	Sep. 29, 2016	Oct. 21, 2015
Stock Repurchase Program, Authorized Amount	$ 100,000,000			$ 100,000,000
Treasury Stock, Value, Acquired, Cost Method	$ 2,996,000	$ 8,794,000	$ 23,431,000
Treasury Stock Acquired, Average Cost Per Share	$ 15.51			$ 14.95
share repurchase program October 2015
Stock Repurchase Program, Authorized Amount									$ 20,000,000
share repurchase plan September 2016 extension
Stock Repurchase Program, Authorized Amount								$ 20,000,000
Share Repurchase Program August 2017 Extension
Stock Repurchase Program, Authorized Amount							$ 20,000,000
Share Repurchase Program November 2018 Extension
Stock Repurchase Program, Authorized Amount						$ 20,000,000
Share Repurchase Program November 2020 Extension
Stock Repurchase Program, Authorized Amount					$ 20,000,000
Treasury Stock
Treasury Stock, Value, Acquired, Cost Method	$ 2,996,000	$ 8,794,000	$ 23,431,000	$ 79,700,000

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Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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