Asset Sale to WBA - Operating results of discontinued operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2023	Feb. 26, 2022	Feb. 27, 2021
Costs and expenses:
Net income from discontinued operations, net of tax			$ 9,161
Discontinued Operations, Disposed of by Sale [Member] | Sale Of Assets To Walgreens Boots Alliance WBA And Buyer [Member]
Income statement disclosures
Revenues			174
Costs and expenses:
Cost of revenues
Net credit to cost of revenues			8
Selling, general and administrative expenses			871
Interest expense
Gain on sale of assets, net			(14,149)
Net expenses and non-operating income			(13,270)
Income from discontinued operations before income taxes			13,444
Income tax (benefit) expense, discontinued operation			4,283
Net income from discontinued operations, net of tax			$ 9,161