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Stockholders’ Equity (Tables)
12 Months Ended
Dec. 31, 2021
Equity [Abstract]  
Schedule of Stock Option Activity

A summary of stock option activity is as follows:

 

   Outstanding stock options 
   Number of shares   Weighted average exercise price 
Balance at December 31, 2020   3,564,458   $3.36 
Options granted   1,105,500    1.23 
Options exercised   (4,584)   1.46 
Options forfeited   -    - 
Options cancelled   (114,169)   4.51 
Balance at December 31, 2021   4,551,205    2.82 
           
Options exercisable at December 31, 2021   2,799,979    3.84 
Schedule of Share-based Compensation of Stock Options Outstanding and Exercisable

The following table summarizes information about stock options outstanding and exercisable at December 31, 2021:

 

Options outstanding  Options exercisable 
Number outstanding  Weighted average remaining contractual life (Years)   Weighted average exercise price   Aggregate intrinsic value   Number exerciseable   Weighted average remaining contractual life (Years)   Weighted average exercise price   Aggregate intrinsic value 
                             
4,551,205   6.66   $2.82   $315,330    2,799,979    5.01   $ 3.84   $201,966 
Warrants outstanding
Number exercisable  Weighted average remaining contractual life (Years)   Weighted average exercise price   Aggregate intrinsic value 
                
1,934,366   3.00   $0.51   $922,629 

 

Schedule of Fair Value of Warrants

 

   December 31, 2021   December 31, 2020   December 31, 2019   November 18, 2019 
Expected life in years   2.88    3.88    4.88    5.00 
Risk-free interest rate   0.97%   0.27%   1.69%   1.63%
Dividend yield                
Volatility   100.00%   100.00%   225.93%   224.47%
Stock price  $0.99   $1.36   $0.39   $0.41 
Schedule of Reconciliation of Warrant Liability

 

   Warrant Liability 
Balance at December 31, 2020  $1,170,051 
Settlement of liabilty on warrant exercise   (18,365)
Change in fair value of common stock warrants   (355,890)
Balance at December 31, 2021  $795,796 
Schedule of Number of Warrants Outstanding and the Weighted Average Exercise Price

The following table summarizes the number of common stock warrants outstanding and the weighted average exercise price:

 

   Warrants   Weighted Average Exercise Price 
Outstanding at December 31, 2020   1,944,366   $0.51 
Issued   -    - 
Exercised   (10,000)   0.50 
Expired   -    - 
Cancelled   -    - 
Forfeited   -    - 
Balance at December 31, 2021   1,934,366   $0.51