Property and Equipment - Schedule of Property and Equipment, Net (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 3,667,882	$ 3,270,177
Less: accumulated depreciation and amortization	(1,843,460)	(1,688,363)
Property and equipment, net	1,824,422	1,581,814
Computers and Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,162,948	936,317
Furniture and Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	171,586	161,434
Manufacturing Equipment and Engineering Tools
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,190,366	2,041,238
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 142,982	$ 131,188