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Net Loss Per Share (Details) - shares
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total potentially dilutive securities 34,079,424 33,813,382
Options to purchase common shares [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total potentially dilutive securities 30,500,000 32,750,000
Warrants to purchase common shares [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total potentially dilutive securities 3,500,000 950,000
Unvested restricted stock agreements [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total potentially dilutive securities 31,250 68,750
Convertible preferred stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total potentially dilutive securities 48,174 44,632