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Stock Options - Schedule of Stock Option Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Number of shares, Beginning Balance 635,000 660,000
Number of shares, Granted 172,000 347,000
Number of shares, Cancelled or expired (13,000) (56,112)
Number of shares, Exercised (45,000) (315,888)
Number of shares, Ending Balance 749,000 635,000
Number of shares Exercisable, Ending Balance 502,000  
Exercise price per share, Granted $ 2.44  
Weighted average exercise price, Beginning Balance 1.35 $ 1.35
Weighted average exercise price, Granted 2.44 2.99
Weighted average exercise price, Cancelled or expired 2.75 1.41
Weighted average exercise price, Exercised 0.88 1.15
Weighted average exercise price, Ending Balance 2.42 1.35
Weighted average exercise price Exercisable, Ending Balance 2.51  
Minimum [Member]    
Exercise price per share, Beginning Balance 0.75 0.75
Exercise price per share, Granted   2.44
Exercise price per share, Cancelled or expired 2.44 0.75
Exercise price per share, Exercised 0.75 0.75
Exercise price per share, Ending Balance 0.75 0.75
Exercise price per share Exercisable, Ending Balance 0.75  
Maximum [Member]    
Exercise price per share, Beginning Balance 1.75 1.75
Exercise price per share, Granted   4.13
Exercise price per share, Cancelled or expired 3.46 3.46
Exercise price per share, Exercised 1.05 1.70
Exercise price per share, Ending Balance 4.13 $ 1.75
Exercise price per share Exercisable, Ending Balance $ 4.13