Concentration of Credit Risk	12 Months Ended
Dec. 31, 2020
Risks and Uncertainties [Abstract]
Concentration of Credit Risk	Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash deposits and receivables. The Company places its deposits with financial institutions and other creditworthy issuers and limits the amount of credit exposure to any one party. For the year ended December 31, 2020, the Company had six significant customers, five of which individually accounted for 27%, 23%, 19%, 15% and 14%, respectively, of operating lease revenue and one of which accounted for 100% of finance lease revenue. For the year ended December 31, 2019, the Company had seven significant customers, five of which individually accounted for 23%, 23%, 16%, 14% and 10%, respectively, of operating lease revenue and two of which accounted for 57% and 38%, respectively, of finance lease revenue. At December 31, 2020, the Company had receivables from two customers totaling $179,700 related to maintenance reserves for 2020, representing 70% of the Company’s total accounts receivable. At December 31, 2019, the Company had receivables from one customer totaling $828,000 related to rents for 2019, representing 74% of the Company’s total accounts receivable, all of which was for accrued rent that is due in March 2020.

Concentration of Credit Risk

12 Months Ended

Dec. 31, 2020

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash deposits and receivables. The Company places its deposits with financial institutions and other creditworthy issuers and limits the amount of credit exposure to any one party.

For the year ended December 31, 2020, the Company had six significant customers, five of which individually accounted for 27%, 23%, 19%, 15% and 14%, respectively, of operating lease revenue and one of which accounted for 100% of finance lease revenue. For the year ended December 31, 2019, the Company had seven significant customers, five of which individually accounted for 23%, 23%, 16%, 14% and 10%, respectively, of operating lease revenue and two of which accounted for 57% and 38%, respectively, of finance lease revenue.

At December 31, 2020, the Company had receivables from two customers totaling $179,700 related to maintenance reserves for 2020, representing 70% of the Company’s total accounts receivable. At December 31, 2019, the Company had receivables from one customer totaling $828,000 related to rents for 2019, representing 74% of the Company’s total accounts receivable, all of which was for accrued rent that is due in March 2020.