Note R - Earnings Per Share (Details Textual)	12 Months Ended
	Jun. 30, 2025 shares
Performance Stock Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	404,300
Performance Stock Unit Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	10,500
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	121,000
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	55,000