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Summary of Stock Option Activity Including Options Form of Warrants (Details)
 3 Months Ended
Mar. 31, 2022
$ / shares
shares
Share-Based Payment Arrangement [Abstract]  
Number of shares, stock options outstanding, at the beginning | shares 2,666,667
Weighted average exercise price, stock options outstanding, at the beginning | $ / shares $ 3.738
Number of shares, Granted | shares
Weighted average exercise price, granted | $ / shares
Number of shares, Exercised | shares
Weighted average exercise price, exercised | $ / shares
Number of shares, Expired | shares
Weighted average exercise price, expired | $ / shares
Number of shares, stock options outstanding, at the end | shares 2,666,667
Weighted average exercise price, stock options outstanding, at the end | $ / shares $ 3.738
Weighted average remaining contractual life (in years), stock options outstanding 3 years 2 months 1 day
Number of shares, stock options exercisable, at the end | shares 2,097,917
Weighted average exercise price, stock options exercisable, at the end | $ / shares $ 3.737
Weighted average remaining contractual life (in years), stock options exercisable 2 years 11 months 8 days