Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Share-Based Payment Transactions (Details 2)

v3.20.1
Share-Based Payment Transactions (Details 2) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Payment Arrangement [Abstract]      
Stock options, Outstanding at beginning of year 1,437,400 1,490,423 737,028
Stock options, Grants 1,240,000 970,000
Stock options, Forfeited/expired (4,000) (53,023) (216,605)
Stock options, Outstanding at end of year 2,673,400 1,437,400 1,490,423
Stock options, Exercisable at end of year 1,134,653 736,155 451,266
Weighted average exercise price, Outstanding at beginning of year $ 1.20 $ 1.35 $ 2.63
Weighted average exercise price, Grants 0.44 0.75
Weighted average exercise price, Forfeited/expired 5.98 7.53 4.26
Weighted average exercise price, Outstanding at end of year 0.89 1.20 1.35
Weighted average exercise price, Exercisable at end of year $ 1.39 $ 2.41 $ 2.41