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Shareholders' Equity (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Apr. 11, 2017
Nov. 08, 2016
Feb. 24, 2018
Nov. 25, 2017
Nov. 26, 2016
Aug. 26, 2017
Shareholders Equity [Line Items]            
Stock-based compensation expense       $ 800 $ 800  
Dividends declared per common share (in dollars per share)       $ 0.10    
Accrued dividend       $ 3,187 $ 0 $ 0
Oct 18 2017 Grant [Member] | Management [Member] | Restricted Stock [Member]            
Shareholders Equity [Line Items]            
Issuance of stock (in shares)       62,660    
Oct 11 2016 Grant [Member] | Management [Member] | Restricted Stock [Member]            
Shareholders Equity [Line Items]            
Issuance of stock (in shares)         97,600  
Grand Design [Member]            
Shareholders Equity [Line Items]            
Shares issued for acquisition   4,586,555        
Acquisition shares sold 2,293,277          
Subsequent Event [Member]            
Shareholders Equity [Line Items]            
Dividends declared per common share (in dollars per share)     $ 0.10