Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details Textual)

v3.19.1
Subsequent Events (Details Textual) - Subsequent Event [Member] - USD ($)
1 Months Ended
Jan. 09, 2019
Mar. 18, 2019
Feb. 27, 2019
Subsequent Events (Textual)      
Common stock upon cashless exercise of options 350,856   158,932
Warrants to purchase common stock 578,891   200,000
Daniel Lu [Member]      
Subsequent Events (Textual)      
Principal amount   $ 1,000,000  
Accrues interest rate   5.00%  
Matures date   Mar. 19, 2022  
Consideration of cash amount   $ 1,000,000