Annual report pursuant to Section 13 and 15(d)

Shareholders Equity and Capital Stock (Details 3)

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Shareholders Equity and Capital Stock (Details 3) - $ / shares
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Shareholders' Equity and Capital Stock      
Number of RSUs Unvested, Beginning Balance 1,404,962 1,155,928 985,496
Number of RSUs Unvested, Granted 305,530 737,553 713,106
Number of RSUs Released (638,989) (475,086)  
Number of RSUs Forfeited (59,843) (13,433) (542,674)
Number of RSUs Unvested, Ending Balance 1,011,660 1,404,962 1,155,928
Number of RSUs Unvested, Beginning Balance, Weighted average grant date fair value $ 0.54 $ 0.65 $ 0.67
Granted, Weighted average grant date fair value 1.14 0.48 0.61
Released, Weighted average grant date fair value 0.63 0.70  
Forfeited, Weighted average grant date fair value 0.56 0.61 0.68
Number of RSUs Unvested, Ending Balance, Weighted Average Grant Date Fair Value $ 0.69 $ 0.54 $ 0.65