Note 3 - Stock Option Activity (Details)	3 Months Ended
	Feb. 27, 2016 $ / shares shares
Outstanding Options (in shares) | shares	2,912,073
Outstanding Options (in dollars per share) | $ / shares	$ 33.37
Granted (in shares) | shares	803,869
Granted (in dollars per share) | $ / shares	$ 33.40
Exercised (in shares) | shares	(1,206)
Exercised (in dollars per share) | $ / shares	$ 26.79
Forfeited or cancelled (in shares) | shares	(86,897)
Forfeited or cancelled (in dollars per share) | $ / shares	$ 37.57
Outstanding Options (in shares) | shares	3,627,839
Outstanding Options (in dollars per share) | $ / shares	$ 33.28