Note L - Restructuring of Operations (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended		18 Months Ended
	Dec. 30, 2016 USD ($)	Dec. 25, 2015 USD ($)	Dec. 30, 2016 USD ($)	Dec. 25, 2015 USD ($)	Dec. 30, 2016 USD ($)
Restructuring and Related Cost, Number of Positions Eliminated					141
Restructuring Charges	$ 816	$ 515	$ 1,074	$ 515	$ 5,156
Other Operating Income (Expense), Net		$ (56)		$ 445