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Net Loss Per Share (Schedule of Company's Potential Anti Dilutive Securities) (Details) - shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 6,178,036 5,548,138
Stock options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 1,610,590 1,099,357
6% convertible exchangeable preferred stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 85 85
Preferred stock, dividend rate (in percent) 6.00% 6.00%
Restricted Stock Units (RSUs)    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 137,657 18,992
Series A Convertible Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 6,600 6,600
Series B Convertible Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 1,188,725 1,188,725
Common Stock Warrants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total shares excluded from calculation 3,234,379 3,234,379