v3.26.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2026
May 06, 2026
Document Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Securities Act File Number 001-40916  
Entity Registrant Name MultiSensor AI Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 86-3938682  
Entity Address, Address Line One 24 Greenway Plaza  
Entity Address, Address Line Two Suite 1800  
Entity Address, City or Town Houston  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 77046  
City Area Code 866  
Local Phone Number 861-0788  
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 true  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   2,019,434
Entity Central Index Key 0001863990  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Common Stock    
Document Information    
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol MSAI  
Security Exchange Name NASDAQ  
Warrants    
Document Information    
Title of 12(b) Security Warrants to purchase common stock  
Trading Symbol MSAIW  
Security Exchange Name NASDAQ