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

   September 30,   December 31, 
   2019   2018 
Gross carrying amount  $4,772,957   $4,909,318 
Accumulated amortization   (4,561,466)   (4,642,875)
Net carrying amount  $211,491   $266,443