Investment in OC-BVI - Investment Rollforward (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Investment in OC-BVI
Balance as of December 31, 2018	$ 2,584,987
Profit-sharing and equity from earnings of OC-BVI	60,965	$ 2,452,355
Distributions received from OC-BVI	(742,350)	(2,651,250)
Balance as of December 31, 2019	$ 1,903,602	$ 2,584,987

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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