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Note 3 - Net Periodic Postretirement Healthcare Cost (Details) - USD ($)
12 Months Ended
Oct. 30, 2015
Oct. 31, 2014
Post-retirement Healthcare Benefits [Member]    
Service cost $ 20,000 $ 18,000
Interest cost 36,000 37,000
Amortization of actuarial gain (37,000) (65,000)
Net periodic postretirement healthcare cost (benefit) 19,000 (10,000)
Service cost 113,000 135,000
Interest cost 2,176,000 2,226,000
Net periodic postretirement healthcare cost (benefit) $ 187,000 $ 61,000