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Schedule of Stock Option Activity (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Option Indexed to Issuer's Equity [Line Items]        
Number of shares, Balance at end of the period (in shares) 3,992,937   3,992,937  
Weighted average exercise price, Balance at end of the period (in dollars per share) $ 2.63   $ 2.63  
Number of shares, Options exercisable (in shares) 2,663,444   2,663,444  
Weighted average exercise price, Options exercisable (in dollars per share) $ 3.38   $ 3.38  
Share-Based Payment Arrangement, Option [Member]        
Option Indexed to Issuer's Equity [Line Items]        
Number of shares, Balance at beginning of the period (in shares)     4,551,205  
Weighted average exercise price, Balance at beginning of the period (in dollars per share)     $ 2.82  
Number of shares, Options granted (in shares) 27,000 0 531,000 376,000
Weighted average exercise price, Options granted (in dollars per share)     $ 1.04  
Number of shares, Options exercised (in shares) (11,667) 0 (220,141) (4,584)
Weighted average exercise price, Options exercised (in dollars per share)     $ 0.96  
Number of shares, Options forfeited (in shares)     (488,747)  
Weighted average exercise price, Options forfeited (in dollars per share)     $ 1.16  
Number of shares, Options cancelled (in shares)     (380,380)  
Weighted average exercise price, Options cancelled (in dollars per share)     $ 5.48  
Number of shares, Balance at end of the period (in shares) 3,992,937   3,992,937  
Weighted average exercise price, Balance at end of the period (in dollars per share) $ 2.63   $ 2.63  
Number of shares, Options exercisable (in shares) 2,663,444   2,663,444  
Weighted average exercise price, Options exercisable (in dollars per share) $ 3.38   $ 3.38