Investment in Leasing Operations: Investment Aging (Details) - USD ($)	Apr. 01, 2017	Dec. 31, 2016
Investment in leasing operations
0-60 Days Delinquent and Accruing	$ 42,572,400	$ 42,286,700
Total investment in direct financing and sales-type leases	42,572,400	42,286,700
Middle-Market
Investment in leasing operations
0-60 Days Delinquent and Accruing	41,581,800	41,299,600
Total investment in direct financing and sales-type leases	41,581,800	41,299,600
Small-Ticket
Investment in leasing operations
0-60 Days Delinquent and Accruing	990,600	987,100
Total investment in direct financing and sales-type leases	$ 990,600	$ 987,100