CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parentheticals) - $ / shares	Dec. 31, 2021	Jun. 30, 2021
Statement Of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	42,810,000	42,676,000
Common stock, shares outstanding	23,406,000	23,554,000
Treasury stock, shares at cost	19,404,000	19,122,000