Stockholders' Equity (Narrative) (Details) - USD ($)	3 Months Ended
	Feb. 27, 2016	Nov. 28, 2015	Nov. 29, 2014
Stockholders Equity [Line Items]
Stock-based compensation expense		$ 623,000	$ 901,000
Common stock, dividends, per share, cash paid		$ 0.10
October 13 2015 Grant [Domain]
Stockholders Equity [Line Items]
Stock-based compensation expense		$ 363,000
October 13 2015 Grant [Domain] | Management [Member] | Restricted Stock [Member]
Stockholders Equity [Line Items]
Issuance of stock (in shares)		204,200
October 15, 2014 Grant [Member] | Management [Member] | Restricted Stock [Member]
Stockholders Equity [Line Items]
Issuance of stock (in shares)			99,600
Subsequent Event [Member]
Stockholders Equity [Line Items]
Common stock, dividends, per share, declared	$ 0.10