Note 9 - Changes in the Company's Stock Options (Details) - Employee Stock Option [Member] shares in Thousands	3 Months Ended
	May 28, 2016 $ / shares shares
Options outstanding, beginning of period (in shares) | shares	3,838
Options outstanding, beginning of period (in dollars per share) | $ / shares	$ 54.43
Granted (in shares) | shares	703
Granted (in dollars per share) | $ / shares	$ 45.53
Exercised (in shares) | shares	(598)
Exercised (in dollars per share) | $ / shares	$ 32.16
Forfeited or expired (in shares) | shares
Forfeited or expired (in dollars per share) | $ / shares
Options outstanding, end of period (in shares) | shares	3,943
Options outstanding, end of period (in dollars per share) | $ / shares	$ 56.22
Options exercisable, end of period (in shares) | shares	2,292
Options exercisable, end of period (in dollars per share) | $ / shares	$ 54.58