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Net Loss per Common Share (Schedule of Diluted Weighted Average Shares Outstanding) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Effect of Series A preferred dividends on net loss per share calculation $ 2.0 $ 2.0 $ 6.0 $ 6.0
Effect of partner company deemed dividends on net loss per share calculation $ 0.2 $ 0.1 $ 1.0 $ 0.4
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding     16,852,673 1,732,987
Warrants to purchase Common Stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding     14,499,535 127,296
Employee Stock Option        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding     558,896 160,233
Unvested Restricted Stock        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding     1,628,082 1,338,750
Unvested Restricted Stock Units        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Potentially dilutive securities excluded from the computations of diluted weighted average shares outstanding     166,160 106,708