Investment in Leasing Operations: (Details 6) (USD $)	Sep. 29, 2012	Dec. 31, 2011
Investment in leasing operations
Total investment in direct financing and sales-type leases	$ 34,375,600	$ 30,001,100
Investment in leases
Investment in leasing operations
0-60 Days Delinquent and Accruing	34,368,700	29,001,900
61-90 Days Delinquent and Accruing	6,900	980,400
Non-Accrual		18,800
Total investment in direct financing and sales-type leases	34,375,600	30,001,100
Middle-Market
Investment in leasing operations
0-60 Days Delinquent and Accruing	32,469,600	25,650,500
61-90 Days Delinquent and Accruing		932,100
Total investment in direct financing and sales-type leases	32,469,600	26,582,600
Small-Ticket
Investment in leasing operations
0-60 Days Delinquent and Accruing	1,899,100	3,351,400
61-90 Days Delinquent and Accruing	6,900	48,300
Non-Accrual		18,800
Total investment in direct financing and sales-type leases	$ 1,906,000	$ 3,418,500