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Note 6 - Commitments and Contingencies (Details Textual) - USD ($)
 3 Months Ended 12 Months Ended
Apr. 17, 2015
Oct. 30, 2015
Oct. 31, 2014
Assets Held under Capital Leases [Member]      
Gain (Loss) on Disposition of Property Plant Equipment $ 75,000    
Capital Lease Term   6 years  
Return of Equipment Financed by Capital Lease $ 445,000 $ 656,000
Gain (Loss) on Disposition of Property Plant Equipment   127,000 $ 152,000
Operating Leases, Rent Expense   448,000 574,000
Capital Leases, Income Statement, Amortization Expense   225,000  
Operating Leases, Rent Expense, Contingent Rentals   93,000 116,000
Capital Lease Obligations, Current   162,000 241,000
Capital Lease Obligations, Noncurrent   $ 563,000 $ 1,104,000