Basis of Presentation and Significant Accounting Policies - Advance Hire, Prepaid Expenses and Other Current Assets (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Advance hire	$ 6,254,555	$ 5,851,070
Prepaid expenses	4,443,081	1,276,901
Accrued receivables	12,356,249	2,479,800
Margin deposit	741,378	1,820,656
Other current assets	4,202,880	759,124
Advance hire, prepaid expenses and other current assets	$ 27,998,143	$ 12,187,551

Accrued Receivable - Income earned through percentage of completion, that has not been invoiced.

No definition available.

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- Definition

Carrying amount of advance hire charges paid as of balance sheet date.

+ References

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

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-Publisher FASB
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- Definition

Amount of current assets classified as other.

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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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