Note 1 - General (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jun. 24, 2023	Jun. 25, 2022	Mar. 25, 2023
Investments	$ 0.2		$ 0.2
Share-Based Payment Arrangement, Expense	0.9	$ 0.8
Realized Gain (Loss), Foreign Currency Transaction, before Tax	0.1	0.2
Unrealized Gain (Loss), Foreign Currency Transaction, before Tax	$ 0.1	$ 0.1
Dilutive Securities, Effect Per Share on Earnings (in dollars per share)	$ 0.01	$ 0.01
Foreign Exchange Contract [Member]
Derivative Asset, Notional Amount	$ 2.5