Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details 1)

v3.19.1
Summary of Significant Accounting Policies (Details 1) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Total cash $ 1,769,291 $ 2,252,287
Percentage of concentrations of credit risk 100.00% 100.00%
United States [Member] | Cash [Member]    
Total cash $ 955,125 $ 1,035,802
Percentage of concentrations of credit risk 54.00% 46.00%
China [Member] | Cash [Member]    
Total cash $ 814,166 $ 1,216,485
Percentage of concentrations of credit risk 46.00% 54.00%