Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Significant Accounting Policies (Details Textual)

v3.19.1
Significant Accounting Policies (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2016
Dec. 31, 2015
Research and development grants received $ 272,237    
Warrant [Member]      
Issuance of warrants to purchase ordinary shares 600,000 4,518,406 3,106,000