Investment in OC-BVI (Details)	6 Months Ended
Jun. 30, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Balance as of December 31, 2017	$ 2,783,882
Profit sharing and equity from earnings of OC-BVI	323,126
Distributions received from OC-BVI	(606,000)
Balance as of June 30, 2018	$ 2,501,008

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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