CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2023	Jun. 30, 2022
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	30,912,108	30,778,046
Common stock, shares outstanding (in shares)	30,523,705	30,747,759
Treasury stock (in shares)	388,403	30,287