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COVER - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 12, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-39593    
Entity Registrant Name Shattuck Labs, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 81-2575858    
Entity Address, Address Line One 500 W. 5th Street    
Entity Address, Address Line Two Suite 1200    
Entity Address, City or Town Austin    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 78701    
City Area Code 512    
Local Phone Number 900-4690    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol STTK    
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 true    
Entity Ex Transition Period false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 85,554,422
Entity Common Stock, Shares Outstanding   47,474,783  
Documents Incorporated by Reference
Documents Incorporated by Reference
The information required by Part III of this Report, to the extent not set forth herein, is incorporated by reference from the registrant’s definitive proxy statement relating to the Annual Meeting of Stockholders to be held in 2024, which shall be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Report relates.
    
Entity Central Index Key 0001680367    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY