Defined Benefit and Defined Contribution Plans (Funded Status Of Plan) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 27, 2021		Mar. 28, 2020		Mar. 30, 2019
Change in Plan Assets:
Fair value of plan assets at beginning of year	$ 18,611		$ 20,838
Actual return (loss) on plan assets	3,688		(1,507)
Benefits paid	(633)		(720)
Fair value of plan assets at end of year	21,666		18,611		$ 20,838
Change in Projected Benefit Obligation:
Benefit obligation at beginning of year	21,646	[1]	20,972
Interest cost	692		752		781
Actuarial loss	391		642
Benefits paid	(633)		(720)
Benefit obligation at end of year	22,096	[1]	21,646	[1]	$ 20,972
Underfunded status of plan	$ (430)		$ (3,035)

[1] Accumulated benefit obligation-the present value of benefits earned to date assuming no future salary growth-is materially consistent with the projected benefit obligation in each period presented.