Investment in Leasing Operations: Minimum Lease Payments Receivable (Details) - USD ($)	Jul. 01, 2017	Dec. 31, 2016
Direct Financing and Sales-Type Leases, Minimum Lease Payments Receivable
2017	$ 12,321,100
2018	16,840,100
2019	9,315,400
2020	1,059,000
2021	12,800
Thereafter	11,200
Total	39,559,600	$ 37,839,800
Direct Financing and Sales-Type Leases, Income Amortization
2017	2,512,600
2018	2,655,100
2019	669,800
2020	19,300
2021	1,200
Thereafter	500
Total	5,858,500
Operating Leases, Minimum Lease Payments Receivable
Total	$ 0