Note M - Earnings Per Share (Details Textual) - shares	3 Months Ended
	Sep. 27, 2019	Sep. 28, 2018
Performance Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	167,800	180,600
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	178,800	170,400
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	38,000	28,200
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,600	3,300