Note 4 - Income Taxes - Income Tax (Benefit) Provision for Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 27, 2022	Feb. 28, 2021	Mar. 01, 2020
Federal	$ 0	$ (84)	$ (183)
State and local	0	(23)	(15)
Foreign	0	0	0
Discontinued Operation, Current Income Tax Expense (Benefit)	0	(107)	(198)
Federal	0	0	0
State and local	0	0	(38)
Foreign	0	0	0
Discontinued Operation, Deferred Income Tax Expense (Benefit)	0	0	(38)
Discontinued Operation, Tax Effect of Discontinued Operation	$ 0	$ (107)	$ (236)