Income Taxes - Schedule of Reconciliation of Tax Provision with Expected Provision (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Benefit on net loss after initial public offering of $3,681,349 and $166,711	$ 1,385,291	$ 62,733
Nondeductible expenses	(48,375)	(7,246)
Tax benefit of historical carryover basis at contribution of members' interest		91,068
Other items	(25,957)
Income tax benefit	$ 1,310,959	$ 146,555
Benefit on net loss after initial public offering of $3,681,349 and $166,711, percentage	37.63%	37.60%
Nondeductible expenses, percentage	(1.30%)	(4.30%)
Tax benefit of historical carryover basis at convention, percentage	0.00%	54.60%
Other items	(0.70%)	0.00%
Tax benefit/effective rate, percentage	35.60%	87.90%