XML 20 R1.htm IDEA: XBRL DOCUMENT v3.24.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2023
Mar. 15, 2024
Jun. 30, 2023
Document Information [Line Items]      
Document Type 10-K    
Document Period End Date Dec. 31, 2023    
Document Annual Report true    
Document Transition Report false    
Entity File Number 00-50626    
Entity Registrant Name Cyclacel Pharmaceuticals, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 91-1707622    
Entity Address, Address Line One 200 Connell Drive    
Entity Address, Address Line Two Suite 1500    
Entity Address, City or Town Berkeley Heights    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 07922    
City Area Code 908    
Local Phone Number 517-7330    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001130166    
Amendment Flag false    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 5,622,362
Entity Common Stock, Shares Outstanding   1,318,257  
ICFR Auditor Attestation Flag false    
Auditor Name RSM US LLP    
Auditor Firm ID 49    
Auditor Location New York, New York    
Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.001 per share    
Trading Symbol CYCC    
Security Exchange Name NASDAQ    
Preferred Stock      
Document Information [Line Items]      
Title of 12(b) Security Preferred Stock, $0.001 par value    
Trading Symbol CYCCP    
Security Exchange Name NASDAQ