Note 9 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 29, 2020	Dec. 01, 2019	Nov. 29, 2020	Dec. 01, 2019	Mar. 01, 2020
Income Tax Expense (Benefit), Total	$ 369	$ 1,069	$ 1,557	$ 2,895
Income Tax Expense (Benefit), Discrete Amount	$ 44		$ 126
Effective Income Tax Rate Reconciliation, Percent, Total	26.30%	27.60%	27.20%	27.70%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%		21.00%
Undistributed Earnings, Basic, Total					$ 25,000