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Note 3 - Benefit Obligation, Plan Assets, and Funded Status of Plans (Details) - USD ($)
 12 Months Ended
Oct. 30, 2015
Oct. 31, 2014
Oct. 30, 2015
Oct. 31, 2014
Change in Plan Assets [Member]        
Change in plan assets:        
Benefits paid $ (1,418,000) $ (1,330,000)    
Change in benefit obligations:        
Benefits paid (1,418,000) (1,330,000)    
Change in Benefit Obligations [Member]        
Change in plan assets:        
Benefits paid (1,418,000) (1,331,000)    
Change in benefit obligations:        
Benefits paid (1,418,000) (1,331,000)    
Fair value of plan assets - beginning of year 42,320,000 39,124,000    
Employer contributions 1,157,000 1,587,000    
Actual return on plan assets (640,000) 2,939,000    
Fair value of plan assets - end of year 41,419,000 42,320,000    
Healthcare obligation - beginning of year 54,277,000 49,154,000    
Service cost 113,000 135,000    
Interest cost 2,176,000 2,226,000    
Actuarial loss (gain) 4,783,000 4,093,000    
Benefit obligations - end of year $ 54,277,000 $ 49,154,000 $ 59,931,000 $ 54,277,000
Funded status of the plans     (18,512,000) (11,957,000)
Unrecognized prior service costs     0 0
Unrecognized net actuarial gain     25,844,000 18,319,000
Net amount recognized     $ 7,332,000 $ 6,362,000