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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Summary of Deferred tax assets and liabilities
Stock-based compensation	$ 2,868,719	$ 4,450,129
Accrued compensation	5,795,204	7,355,744
Unrealized gains	(2,260,673)	(1,802,708)
Property and equipment	(467,127)	(779,391)
Other assets and liabilities	(92,419)	(487,007)
Net deferred tax assets	$ 5,843,704	$ 8,736,767

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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