XML 82 R48.htm IDEA: XBRL DOCUMENT v3.20.1
Intangible Assets, Net (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Intangible Assets, Net (Textual)      
Amortization expense $ 172,209 $ 179,268 $ 174,303