Note 5 - Accounting for Share-based Compensation - Stock Option Activity (Details)	3 Months Ended
	Mar. 02, 2019 $ / shares shares
Outstanding Options (in shares) | shares	4,466,106
Outstanding Options, weighted-average exercise price (in dollars per share) | $ / shares	$ 44.72
Granted (in shares) | shares	952,067
Granted, weighted-average exercise price (in dollars per share) | $ / shares	$ 45.48
Exercised (in shares) | shares	(40,605)
Exercised, weighted-average exercise price (in dollars per share) | $ / shares	$ 26.23
Forfeited or cancelled (in shares) | shares	(5,191)
Forfeited or cancelled, weighted-average exercise price (in dollars per share) | $ / shares	$ 50.48
Outstanding Options (in shares) | shares	5,372,377
Outstanding Options, weighted-average exercise price (in dollars per share) | $ / shares	$ 44.99