Annual report pursuant to Section 13 and 15(d)

Loss per common share - Schedule of Loss Per Common Share, Basic and Diluted (Details)

v3.20.4
Loss per common share - Schedule of Loss Per Common Share, Basic and Diluted (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Net loss attributable to stockholders $ (6,150,507) $ (4,709,019)
Weighted average shares outstanding - basic and diluted 24,850,258 24,839,957
Net loss per share - basic and diluted $ (0.25) $ (0.19)
Stock Options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive shares underlying stock options outstanding 178,224 142,756