Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) per Common Share - Earnings per share (Details)

v3.21.1
Net Income (Loss) per Common Share - Earnings per share (Details) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Earnings Per Share [Abstract]    
Options 1,672,938 315,938
Warrants 567,336 1,067,486
Convertible debentures 1,106,250
Anti-dilutive shares 2,240,274 2,489,674