XML 33 R31.htm IDEA: XBRL DOCUMENT v3.19.3
Property and Equipment, Net (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Property and Equipment, Net (Textual)        
Depreciation expense $ 84,587 $ 86,076 $ 262,022 $ 292,214