Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.24.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2023
Mar. 19, 2024
Jun. 30, 2023
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Document Transition Report false    
Entity File Number 001-38128    
Entity Registrant Name Checkpoint Therapeutics, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-2568632    
Entity Address, Address Line One 95 Sawyer Road    
Entity Address, Address Line Two Suite 110    
Entity Address, City or Town Waltham    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02453    
City Area Code 781    
Local Phone Number 652-4500    
Title of 12(b) Security Common Stock, par value $0.0001 per    
Trading Symbol CKPT    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 33,088,814
Entity Central Index Key 0001651407    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name KPMG, LLP    
Auditor Location Boston, MA    
Auditor Firm ID 185    
Class A Common Stock      
Document and Entity Information      
Entity Common Stock, Shares Outstanding   700,000  
Common Stock      
Document and Entity Information      
Entity Common Stock, Shares Outstanding   34,986,279