Annual report pursuant to Section 13 and 15(d)

Fixed Assets, Net (Schedule Of Fixed Assets) (Detail)

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Fixed Assets, Net (Schedule Of Fixed Assets) (Detail) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 6,377,260 $ 5,051,522
Less: Accumulated Depreciation (2,252,794) (1,686,614)
Fixed Assets, Net 4,124,466 3,364,908
Tooling and Manufacturing Equipment    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 3,965,251 2,702,468
Leaseholds    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 443,332 403,737
Computers and Purchased Software    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 646,272 585,795
Funiture and Equipment    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,322,405 $ 1,359,522