Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Warrants - Summary of Non-Vested Stock Options (Details)

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Stock-Based Compensation and Warrants - Summary of Non-Vested Stock Options (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Shares  
Non-vested stock options (in shares) | shares 263,333
Vested (in shares) | shares (127,667)
Cancelled, expired or forfeited (in shares) | shares (10,000)
Non-vested stock options (in shares) | shares 125,667
Weighted average grant date fair value  
Non-vested stock options (in dollars per share) | $ / shares $ 0.99
Vested (in dollars per share) | $ / shares 1.00
Cancelled, expired or forfeited (in dollars per share) | $ / shares 0.87
Non-vested stock options (in dollars per share) | $ / shares $ 1.00