Quarterly report pursuant to Section 13 or 15(d)

Stock Options - Stock option activity (Details)

v3.21.1
Stock Options - Stock option activity (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Stock option Activity    
Options outstanding, shares 1,672,938  
Weighted average exercise price    
Options outstanding, weighted average exercise price $ 2.12  
Stock option [Member]    
Stock option Activity    
Options outstanding, shares 1,622,938 315,938
Granted 50,000 1,307,000
Options outstanding, shares 1,672,938 1,622,938
Weighted average exercise price    
Options outstanding, weighted average exercise price $ 2.11 $ 2.84
Granted 2.62 1.95
Options outstanding, weighted average exercise price $ 2.12 $ 2.11