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Organization of the Company and Basis of Presentation - Subsequent Events (Details)
 12 Months Ended
Mar. 21, 2025
USD ($)
$ / shares
shares
Mar. 10, 2025
GBP (£)
Feb. 26, 2025
shares
Feb. 11, 2025
$ / shares
shares
Feb. 06, 2025
Feb. 05, 2025
USD ($)
Feb. 04, 2025
USD ($)
$ / shares
Jan. 31, 2025
USD ($)
Jan. 29, 2025
Jan. 02, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
$ / shares
Dec. 31, 2023
$ / shares
Class of Stock [Line Items]                        
Preferred stock, dividend rate                     6.00% 6.00%
Common stock, par value | $ / shares                     $ 0.001 $ 0.001
Preferred stock, par value | $ / shares                     $ 0.001 $ 0.001
Subsequent Event [Member]                        
Class of Stock [Line Items]                        
Preferred stock, dividend rate                 6.00%      
Number of shares issued | shares                   1,000,000    
Increase in stockholders' equity due to deconsolidation of subsidiary               $ 5,600,000        
Reverse stock split conversion ratio         reverse stock split at a ratio not less than 1:4 and not more than 1:16 (the “2025 Reverse Stock Split”)              
Subsequent Event [Member] | Rombotis Settlement Agreement [Member]                        
Class of Stock [Line Items]                        
Settlement payment                   $ 279,415.50    
Future one time settlement payment                   279,415.50    
Subsequent Event [Member] | McBarron Settlement Agreement [Member]                        
Class of Stock [Line Items]                        
Settlement payment                   165,164.50    
Future one time settlement payment                   $ 165,164.50    
Subsequent Event [Member] | David Lazar [Member] | Common Stock [Member]                        
Class of Stock [Line Items]                        
Common stock value agreed to be issued             $ 8,000,000          
Common stock, par value | $ / shares             $ 0.001          
Subsequent Event [Member] | Cyclacel Limited United Kingdom[Member] | Assets Of Cyclacel Limited [Member]                        
Class of Stock [Line Items]                        
Asset acquisition consideration transferred | £   £ 250,000                    
Subsequent Event [Member] | January 2025 Securities Purchase Agreement [Member]                        
Class of Stock [Line Items]                        
Share issue price per share | $ / shares                   $ 1.00    
Gross proceeds from convertible preferred stock                   $ 3,100,000    
Subsequent Event [Member] | Private Placement [Member] | David Lazar [Member]                        
Class of Stock [Line Items]                        
Share purchase agreement increment exercise lot one value             $ 1,000,000          
Share purchase agreement increment exercise lot two value             $ 2,000,000          
Subsequent Event [Member] | February 2025 Securities Purchase Agreement [Member]                        
Class of Stock [Line Items]                        
Percentage of outstanding common stock       70.00%                
Subsequent Event [Member] | February 2025 Securities Purchase Agreement [Member] | Common Stock [Member]                        
Class of Stock [Line Items]                        
Number of shares issued on conversion | shares     799,911                  
Subsequent Event [Member] | February 2025 Securities Purchase Agreement [Member] | Helena Special Opportunities 1 Ltd [Member]                        
Class of Stock [Line Items]                        
Aggregate offering price           $ 25,000,000            
Subsequent Event [Member] | Series D Preferred Stock [Member]                        
Class of Stock [Line Items]                        
Number of shares issued | shares                   2,100,000    
Subsequent Event [Member] | Series C Convertible Preferred Stock [Member] | February 2025 Securities Purchase Agreement [Member]                        
Class of Stock [Line Items]                        
Number of shares issued | shares       1,000,000                
Preferred stock, par value | $ / shares       $ 0.0001                
Number of shares issued on conversion | shares     11,041                  
Subsequent Event [Member] | Series D Convertible Preferred Stock [Member] | February 2025 Securities Purchase Agreement [Member]                        
Class of Stock [Line Items]                        
Number of shares issued | shares       2,100,000                
Preferred stock, par value | $ / shares       $ 0.0001                
Number of shares converted | shares     1,745,262                  
Subsequent Event [Member] | Series C And D Convertible Preferred Stock [Member] | February 2025 Securities Purchase Agreement [Member]                        
Class of Stock [Line Items]                        
Number of shares issued | shares       1,745,262                
Number of shares converted | shares     1,000,000                  
Subsequent Event [Member] | Series E Convertible Preferred Stock [Member] | March 2025 Securities Purchase Agreement [Member]                        
Class of Stock [Line Items]                        
Number of shares issued | shares 1,000,000                      
Share issue price per share | $ / shares $ 1.00                      
Gross proceeds from convertible preferred stock $ 1,000,000.0