Note 4 - Income Taxes - Effective Income Tax Reconciliation (Details)	12 Months Ended
	Mar. 03, 2019	Feb. 25, 2018	Feb. 26, 2017
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	32.90%	34.00%
State and local taxes, net of	1.60%	(41.40%)	(0.90%)
Federal benefit Foreign tax rate differentials	(0.80%)	(117.60%)	13.80%
Valuation allowance on deferred tax assets	(2.80%)
Adjustment on tax accruals	2.90%	56.80%	(3.90%)
ASC 740-10 change	0.40%	104.70%	16.90%
Foreign tax credits	(3.20%)	(118.00%)	14.20%
U.S. Tax Reform		(5944.20%)
Subpart F	(4.00%)	(281.10%)	37.20%
Permanent differences and other	(1.00%)	(104.00%)	2.50%
	22.10%	(5849.70%)	39.40%