Annual report pursuant to Section 13 and 15(d)

Tooling and Equipment, Net (Additional Information (Detail)

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Tooling and Equipment, Net (Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]    
Depreciation and Amortization $ 377,840 $ 468,817