Annual report [Section 13 and 15(d), not S-K Item 405]

Net Loss per Common Share (Schedule of potentially dilutive securities would be excluded from the computation of net loss per common share) (Details)

v3.26.1
Net Loss per Common Share (Schedule of potentially dilutive securities would be excluded from the computation of net loss per common share) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Effect of Series A preferred dividends on net loss per share calculation $ 8.0 $ 8.0
Effect of subsidiaries deemed dividends $ 0.7 $ 1.9
Potentially dilutive securities 17,273,250 19,379,557
Warrants to purchase Common Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Potentially dilutive securities 13,431,502 14,406,201
Options to purchase Common Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Potentially dilutive securities   558,896
Unvested Restricted Stock and deferred Restricted Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Potentially dilutive securities 856,760 1,900,630
Unvested Restricted Stock units and deferred Restricted Stock units    
Antidilutive Securities Excluded from Computation of Earnings Per Share    
Potentially dilutive securities 2,984,988 2,513,830