Consolidated Statements of Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Nov. 24, 2018	Nov. 25, 2017	Nov. 26, 2016
Retained Earnings [Member]
Regular dividends, per share (in dollars per share)	$ 0.47	$ 0.42	$ 0.38
Special dividends, per share (in dollars per share)		0.35	0.30
Regular dividends, per share (in dollars per share)	0.47	0.42	0.38
Special dividends, per share (in dollars per share)		$ 0.35	$ 0.30