Employee Benefit Plans (Schedule of Changes in Plan Assets, Changes in Projected Benefit Obligation, and Funded Status) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Mar. 02, 2019
Change in projected benefit obligation
Benefit obligation beginning of period	$ 14,371	$ 13,310
Interest cost	346	492	$ 506
Actuarial (gain) loss	(175)	1,567
Estimated future benefit payments	1,001	998
Benefit obligation at measurement date	13,541	14,371	13,310
Change in plan assets
Fair value of plan assets beginning of period	5,986	5,330
Actual return on plan assets	(88)	1,002
Company contributions	654	652
Fair value of plan assets at measurement date	5,551	5,986	$ 5,330
Underfunded status	$ (7,990)	$ (8,385)