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

Share-Based Payment Transactions (Details) - Schedule of weighted average exercise prices and modification in option plans of employees

v3.21.1
Share-Based Payment Transactions (Details) - Schedule of weighted average exercise prices and modification in option plans of employees - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule of weighted average exercise prices and modification in option plans of employees [Abstract]      
Number of Outstanding at beginning of year 2,673,400 1,437,400 1,490,423
Weighted average exercise price, Outstanding at beginning of year $ 0.89 $ 1.20 $ 1.35
Number of Grants 9,250,000 1,240,000
Weighted average exercise price, Grants $ 0.08 $ 0.44
Number of Forfeited/expired (4,000) (53,023)
Weighted average exercise price, Forfeited/expired $ 5.98 $ 7.53
Number of Outstanding at end of year 11,923,400 2,673,400 1,437,400
Weighted average exercise price, Outstanding at end of year $ 0.28 $ 0.89 $ 1.20
Number of Exercisable at end of year 2,900,276 1,134,653 736,155
Weighted average exercise price, Exercisable at end of year $ 0.74 $ 1.39 $ 2.41