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Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets

Intangible assets are comprised of the following:

 

        September 30, 2019     December 31, 2018  
    Useful Life   Gross Carrying Amount     Accumulated Amortization     Net Carrying Amount     Gross Carrying Amount     Accumulated Amortization     Net Carrying Amount  
                                         
Acquired intangibles - customer lists, licenses and non-compete agreements   3-10 years     1,778,848       1,097,787       681,061       1,284,065       823,884       460,181  
Acquired intangibles - patents and patent rights         500,000       500,000       -       500,000       500,000       -  
Patent application costs   Varied (1)     1,175,971       808,529       367,442       1,168,155       746,925       421,230  
        $ 3,454,819     $ 2,406,316     $ 1,048,503     $ 2,952,220     $ 2,070,809     $ 881,411  

 

(1) Patent application costs are amortized over their expected useful life which is generally the remaining legal life of the patent. As of September 30, 2019, the weighted average remaining useful life of these assets in service was approximately 7 years.