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Note 13. Share Owners' Equity (Details) - USD ($)	3 Months Ended	9 Months Ended		65 Months Ended
	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 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	$ 2,686,000	$ 2,996,000	$ 8,794,000
Treasury Stock Acquired, Average Cost Per Share		$ 15.51		$ 14.95
Treasury Stock
Treasury Stock, Value, Acquired, Cost Method	$ 2,686,000	$ 2,996,000	$ 8,794,000	$ 79,700,000
Share Repurchase Program October 2015
Stock Repurchase Program, Authorized Amount									$ 20,000,000
Share Repurchase Program 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

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

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