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Income Taxes - Schedule of Income Tax Expense (Benefit), Federal Statutory Rate (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Expected tax expense	$ 3,817,085	$ 13,616,008
State income taxes, net of federal benefit	1,957,508	1,150,258
Gain on merger	927,344	(3,518,814)
Tax rate adjustments	294,924	(59,717,125)
Change in valuation allowance	3,432,284	52,833
Non-deductible items	1,140,948	(110,953)
Other	125,453	299,503
Income Tax Expense (Benefit)	$ 11,695,546	$ (48,228,290)

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Income tax reconciliation gain (loss) on merger.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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