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Note 3 - Commitments and Contingencies (Details Textual) - USD ($)
3 Months Ended 8 Months Ended
Apr. 17, 2015
Jul. 06, 2012
Jul. 10, 2015
Jul. 11, 2014
Assets Held under Capital Leases [Member]        
Gain (Loss) on Disposition of Property Plant Equipment $ 75,000      
Capital Lease Obligations Incurred   $ 1,848,000    
Return of Equipment Financed by Capital Lease $ 656,000   $ 656,000 $ 0
Gain (Loss) on Disposition of Property Plant Equipment     122,000 $ 79,000
Capital Leases, Future Minimum Payments Due     $ 772,000