Quarterly report [Sections 13 or 15(d)]

Cover

v3.25.2
Cover - $ / shares
6 Months Ended
Jun. 30, 2025
Aug. 11, 2025
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2025  
Current Fiscal Year End Date --12-31  
Entity File Number 001-41455  
Entity Registrant Name MAIA BIOTECHNOLOGY, INC.  
Entity Central Index Key 0001878313  
Entity Tax Identification Number 83-1495913  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 444 West Lake Street  
Entity Address, Address Line Two Suite 1700  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60606  
City Area Code (312)  
Local Phone Number 416-8592  
Title of 12(b) Security Common Stock, $0.0001 par value per share  
Trading Symbol MAIA  
Security Exchange Name NYSE  
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  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   32,993,220
Entity Listing, Par Value Per Share $ 0.0001