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, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 7,347,175 $ 6,377,260
Less: Accumulated Depreciation (3,055,485) (2,252,794)
Fixed Assets, Net 4,291,690 4,124,466
Tooling and Manufacturing Equipment    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 4,199,309 3,965,251
Leaseholds    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 487,957 443,332
Computers and Purchased Software    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 937,946 646,272
Funiture and Equipment    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,721,963 $ 1,322,405