Note 1 - General (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Dec. 23, 2023	Dec. 23, 2023	Dec. 24, 2022	Sep. 30, 2023	Mar. 25, 2023
Investments	$ 0.2	$ 0.2			$ 0.2
Share-Based Payment Arrangement, Expense		3.3	$ 2.8
Realized Gain (Loss), Foreign Currency Transaction, before Tax		0.1
Unrealized Gain (Loss), Foreign Currency Transaction, before Tax		$ 0.1	$ 0.3
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.5	$ 0.5		$ 0.5	$ 0.5
Dilutive Securities, Effect Per Share on Earnings (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Foreign Exchange Contract [Member]
Derivative Asset, Notional Amount	$ 2.0	$ 2.0