Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Common Share (Schedule of Diluted Weighted Average Shares Outstanding) (Details)

v3.21.2
Net Loss per Common Share (Schedule of Diluted Weighted Average Shares Outstanding) (Details) - shares
 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding 21,954,883 18,954,457
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding 4,535,804 3,026,693
Employee Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding 836,732 1,187,600
Unvested Restricted Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding 16,372,752 14,305,949
Unvested Restricted Stock Units [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding 209,595 434,215