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
Jun. 30, 2018
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Year 1 $ (525,228)
Year 2 (439,543)
Year 3 (468,224)
Year 4 (470,224)
Year 5 $ (420,224)