Note 5 - Option Activity (Details) - $ / shares	12 Months Ended
	Feb. 28, 2016	Mar. 01, 2015	Mar. 02, 2014
Option Exchange Program [Member]
Granted (in shares)		996,892	902,517
Granted (in dollars per share)		$ 22.55	$ 23.13
Terminated or expired (in shares)		(996,892)	(902,517)
Terminated or expired (in dollars per share)		$ 24.05	$ 25.63
Balance (in shares)	966,692	1,081,117	977,783
Balance (in dollars per share)	$ 22.55	$ 23.84	$ 25.54
Granted (in shares)	379,450	18,000	193,600
Granted (in dollars per share)	$ 17.82	$ 25.81	$ 27.20
Exercised (in shares)	(2,500)	(79,800)	(51,266)
Exercised (in dollars per share)	$ 19.91	$ 21.49	$ 23.44
Terminated or expired (in shares)	(117,250)	(52,625)	(39,000)
Terminated or expired (in dollars per share)	$ 21.53	$ 24.21	$ 26.07
Balance (in shares)	1,226,392	966,692	1,081,117
Balance (in dollars per share)	$ 21.19	$ 22.55	$ 23.84
Balance	6 years 58 days
Vested and exercisable, February 28, 2016 (in shares)	721,525
Vested and exercisable, February 28, 2016 (in dollars per share)	$ 22.38
Vested and exercisable, February 28, 2016	4 years 58 days
Expected to vest, February 28, 2016 (in shares)	1,162,620
Expected to vest, February 28, 2016 (in dollars per share)	$ 21.19
Expected to vest, February 28, 2016	6 years 58 days