Registration of securities issued in business combination transactions

Significant Accounting Policies - Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share (Details)

v3.20.4
Significant Accounting Policies - Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Total potentially dilutive shares 12,883,844 3,047,858
Stock Options [Member]    
Total potentially dilutive shares 40
Restricted Stock Units [Member]    
Total potentially dilutive shares 789,360 15,603
Warrants to Purchase Common Stock [Member]    
Total potentially dilutive shares 10,925,952 247,215
Pre-Funded Warrants to Purchase Common Stock [Member]    
Total potentially dilutive shares 1,040,540 795,000
Warrants to Purchase Series C Preferred Stock [Member]    
Total potentially dilutive shares 55,000 1,990,000
Series D Convertible Preferred Stock [Member]    
Total potentially dilutive shares 72,992