Investment in Leasing Operations: Investment Aging (Details) - USD ($)	Sep. 26, 2020	Dec. 28, 2019
Investment in leasing operations
0-60 Days Delinquent and Accruing	$ 16,045,700	$ 25,657,400
Total investment in direct financing and sales-type leases	16,045,700	25,657,400
Middle-Market
Investment in leasing operations
0-60 Days Delinquent and Accruing	15,051,900	24,546,300
Total investment in direct financing and sales-type leases	15,051,900	24,546,300
Small-Ticket
Investment in leasing operations
0-60 Days Delinquent and Accruing	993,800	1,111,100
Total investment in direct financing and sales-type leases	$ 993,800	$ 1,111,100