Note 13. Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Net income	$ 16,400	$ 13,638	$ 36,629	$ 21,315
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	24	19	53	31
Net Income (Loss) Available to Common Stockholders, Basic	$ 16,376	$ 13,619	$ 36,576	$ 21,284
Weighted Average Number of Shares Outstanding, Basic	24,898	25,175	24,868	25,192
Dilutive effect of average outstanding stock compensation awards	169	97	163	99
Weighted Average Number of Shares Outstanding, Diluted	25,067	25,272	25,031	25,291
Earnings Per Share, Basic	$ 0.66	$ 0.54	$ 1.47	$ 0.84
Earnings Per Share, Diluted	$ 0.65	$ 0.54	$ 1.46	$ 0.84