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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Summary of Deferred tax assets and liabilities    
Stock-based compensation $ 6,077,629 $ 5,433,419
Accrued incentive compensation 4,724,670 2,964,688
Deferred Tax Liabilities, Unrealized Gains on Trading Securities (722,466) (2,436,006)
Deferred Tax Liabilities, Property and Equipment (815,825) (369,248)
Other assets and liabilities (57,929) 66,139
Net deferred tax assets $ 9,206,079 $ 5,658,992