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Stockholders' Equity (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
May. 28, 2016
Feb. 27, 2016
Nov. 28, 2015
Feb. 28, 2015
Nov. 29, 2014
Feb. 27, 2016
Feb. 28, 2015
Stockholders Equity [Line Items]              
Stock-based compensation expense   $ 642,000   $ 447,000   $ 1,300,000 $ 1,300,000
Common stock, dividends, per share, cash paid   $ 0.10   $ 0.09   $ 0.20 $ 0.18
October 13 2015 Grant [Domain]              
Stockholders Equity [Line Items]              
Stock-based compensation expense           $ 795,000  
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    
January 18 2016 Grant [Member] | Management [Member] | Restricted Stock [Member]              
Stockholders Equity [Line Items]              
Issuance of stock (in shares)   10,000          
January 18 2016 Grant [Member] | Management [Member] | Employee Stock Options [Member]              
Stockholders Equity [Line Items]              
Issuance of stock (in shares)   10,000          
Subsequent Event [Member]              
Stockholders Equity [Line Items]              
Common stock, dividends, per share, declared $ 0.10