Note 9 - Employee Benefit Plans (Details Textual) - USD ($)	12 Months Ended
Feb. 28, 2016	Mar. 01, 2015	Mar. 02, 2014
Profit Sharing [Member]
Deferred Compensation Arrangement with Individual, Employer Contribution	$ 0	$ 100,000	$ 268,000
Savings Plan [Member]
Deferred Compensation Arrangement with Individual, Employer Contribution	$ 112,000	$ 123,000	$ 142,000

The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement.

No definition available.

Name:	us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration