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Investment in Leasing Operations: (Details 5) - USD ($)
Sep. 26, 2015
Dec. 27, 2014
Investment In Leases    
Total $ 41,125,700 $ 44,136,800
Allowance for Credit Losses    
Collectively evaluated for loss potential 882,000 386,000
Total 882,000 386,000
Investment in leases    
Investment In Leases    
Collectively evaluated for loss potential 41,125,700 44,136,800
Total $ 41,125,700 $ 44,136,800