XML 67 R53.htm IDEA: XBRL DOCUMENT v3.19.2
Long-Term Investments (Details 5) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
Long-Term Investment [Abstract]        
Share of equity method investee losses $ (66,205) $ (38,567) $ (549)
Impairments (2,549,451)
Total losses on equity investments $ (66,205) $ (38,567) $ (2,550,000)