Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Liabilities Other Than Goodwill - Future Amortization of Customer Contracts (Details)

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Intangible Assets and Liabilities Other Than Goodwill - Future Amortization of Customer Contracts (Details) - Customer Contracts
Mar. 31, 2018
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Year 1 $ (628,543)
Year 2 (517,196)
Year 3 (524,276)
Year 4 (535,463)
Year 5 $ (494,180)