Annual report pursuant to Section 13 and 15(d)

Stockholders Equity (Details 2)

v3.21.1
Stockholders Equity (Details 2)
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Number of Shares of Common Stock Underlying Warrants 6,765,418
Private Warrants issued to Yeda [Member]  
Issuance Date May 11, 2017
Expiration Date May 11, 2025
Exercise Price Per Share | $ / shares [1]
Number of Shares of Common Stock Underlying Warrants 354,829
Private Warrants issued to Founders [Member]  
Issuance Date Nov. 27, 2017
Exercise Price Per Share | $ / shares
Number of Shares of Common Stock Underlying Warrants 10,589
Private Placement Warrants [Member] | IPO [Member]  
Issuance Date Dec. 13, 2018
Expiration Date Dec. 13, 2023
Exercise Price Per Share | $ / shares $ 11.50
Number of Shares of Common Stock Underlying Warrants 2,900,000
Public Warrants [Member] | IPO [Member]  
Issuance Date Dec. 13, 2018
Expiration Date Oct. 28, 2024
Exercise Price Per Share | $ / shares $ 11.50
Number of Shares of Common Stock Underlying Warrants 3,500,000
[1] less than $0.001.