Investment in Leasing Operations: (Details 6) (USD $)	Dec. 29, 2012	Dec. 31, 2011
Investment in leasing operations
Total investment in direct financing and sales-type leases	$ 36,425,800	$ 30,001,100
Investment in leases
Investment in leasing operations
0-60 Days Delinquent and Accruing	36,419,000	29,001,900
61-90 Days Delinquent and Accruing		980,400
Non-Accrual	6,800	18,800
Total investment in direct financing and sales-type leases	36,425,800	30,001,100
Middle-Market
Investment in leasing operations
0-60 Days Delinquent and Accruing	34,901,300	25,650,500
61-90 Days Delinquent and Accruing		932,100
Total investment in direct financing and sales-type leases	34,901,300	26,582,600
Small-Ticket
Investment in leasing operations
0-60 Days Delinquent and Accruing	1,517,700	3,351,400
61-90 Days Delinquent and Accruing		48,300
Non-Accrual	6,800	18,800
Total investment in direct financing and sales-type leases	$ 1,524,500	$ 3,418,500