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Note 3 - Healthcare Obligation and Funded Status of Plan (Details) - USD ($)
 12 Months Ended
Oct. 30, 2015
Oct. 31, 2014
Postretirement Health Coverage [Member]    
Change in accumulated postretirement healthcare obligation:    
Healthcare obligation - beginning of year $ 965,000 $ 880,000
Service cost 20,000 18,000
Interest cost 36,000 37,000
Actuarial loss (gain) 1,000 52,000
Benefits paid (19,000) (22,000)
Healthcare obligation – end of year 1,003,000 965,000
Funded status of the plans 1,003,000 965,000
Unrecognized net actuarial gain (174,000) (212,000)
Unrecognized amounts recorded in other comprehensive income 174,000 212,000
Postretirement healthcare liability 1,003,000 965,000
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
Healthcare obligation – end of year 59,931,000 54,277,000
Funded status of the plans (18,512,000) (11,957,000)
Unrecognized net actuarial gain $ 25,844,000 $ 18,319,000