Property and Equipment, net (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Office equipment	$ 9,494	$ 8,466
Medical equipment	418,280	359,248
Furniture and fixtures	126,150	113,874
Computer software and equipment	85,118	66,458
Leasehold improvements	301,610	103,582
Property, Plant and Equipment, Gross	940,652	651,628
Less: accumulated depreciation	(297,565)	(157,772)
Property and equipment, net	$ 643,087	$ 493,856