Investment in Leasing Operations: Leasing Income (Details)	12 Months Ended
	Dec. 28, 2019 USD ($)
Leasing income
Interest income on direct financing and sales-type leases	$ 7,602,600
Selling profit (loss) at commencement of sales-type leases	2,470,300
Operating lease income	2,525,600
Income on sales of equipment under lease	2,855,400
Other	601,900
Leasing income	$ 16,055,800