Property and Equipment, net - Property and Equipment, net (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 362,491	$ 350,554
Less: Accumulated depreciation	(175,360)	(159,169)
Total property and equipment, net	187,131	191,385
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	27,915	27,915
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	181,868	169,931
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 152,708	$ 152,708

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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