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Intangible Assets, Net (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Intangible Assets, Net (Textual)        
Amortization expense $ 64,083 $ 421,189 $ 128,165 $ 842,376
Estimated aggregate amortization expense for 2019 128,167   128,167  
Estimated aggregate amortization expense for 2020 246,681   246,681  
Estimated aggregate amortization expense for 2021 184,667   184,667  
Estimated aggregate amortization expense for 2022 149,944   149,944  
Estimated aggregate amortization expense for 2023 $ 46,599   $ 46,599