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Investment in Sales-Type Leases, Net (Details 1) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Investments [Abstract]    
2020 $ 25,081,650  
2021 6,447,143  
2022 6,447,143  
2023 6,447,143  
2024 6,447,143  
Thereafter 4,835,358  
Total $ 55,705,580 $ 88,661,266