Annual report pursuant to Section 13 and 15(d)

Nature of Business and Summary of Significant Accounting Policies - Additional Information (Details)

v3.24.1
Nature of Business and Summary of Significant Accounting Policies - Additional Information (Details)
 1 Months Ended 2 Months Ended 12 Months Ended
Nov. 17, 2023
USD ($)
shares
Apr. 27, 2023
USD ($)
$ / shares
shares
Aug. 03, 2022
USD ($)
shares
Aug. 01, 2022
USD ($)
shares
May 31, 2022
USD ($)
Feb. 28, 2022
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Aug. 12, 2021
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                    
State of incorporation             DE      
Date of incorporation             Aug. 03, 2018      
Common stock, conversion description             minority stockholder of THIO received one share of MAIA common stock for each share of THIO common stock owned prior to the merger.      
Common stock, conversion ratio             1      
Working capital             $ 2,626,899      
Accumulated deficit             (63,980,177) $ (44,207,272)    
Cash             7,150,695 10,950,927    
Current liabilities             4,937,153 3,268,906    
Revenues             0      
Gross proceeds from sale of common stock     $ 9,100,000   $ 99,999 $ 2,373,561   2,473,560    
Derivative instruments             0 0    
Current cash reserves             7,150,695 10,950,927 $ 10,574,292  
Gross proceeds from initial public offering               11,500,000    
Cash equivalents             0 0    
Deferred offering costs             $ 0 211,203    
Accounting Standards Update [Extensible Enumeration]             us-gaap:AccountingStandardsUpdate201602Member      
IPO                    
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                    
Number of common stock sold | shares   2,555,500   2,000,000            
Sale of common stock, price per share | $ / shares   $ 2.25                
Gross proceeds from sale of common stock   $ 4,200,000                
Issuance of common shares       $ 1,099,360       $ 8,750,095    
Overallotment Option                    
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                    
Number of common stock sold | shares     300,000              
Securities Purchase Agreements                    
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                    
Number of common stock sold | shares 2,424,243                  
Gross proceeds from sale of common stock $ 1,400,000                  
Warrant issued $ 1,900,000                  
At the market                    
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                    
Number of common stock sold | shares   758,388                
Gross proceeds from sale of common stock   $ 1,200,000                
MAIA Biotechnology, Inc. | THIO Therapeutics, Inc.                    
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                    
Ownership percentage by parent                   93.30%
Minority stockholder ownership percentage                   6.70%