Annual report pursuant to Section 13 and 15(d)

Patents and Trademarks, Net (Schedule Of Patents and Trademarks) (Detail)

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Patents and Trademarks, Net (Schedule Of Patents and Trademarks) (Detail) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Patents and Trademarks, Net $ 1,164,543 $ 813,774
Patents and Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Patents and Trademarks 1,769,767 1,325,905
Less: Accumulated Amortization (605,224) (512,131)
Patents and Trademarks, Net $ 1,164,543 $ 813,774