v3.21.2
Nature of Organization and Operations - Additional Information (Detail)
1 Months Ended 6 Months Ended
May 16, 2021
USD ($)
May 12, 2020
USD ($)
Jan. 31, 2021
Employee
May 31, 2020
USD ($)
Jun. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Realignment plan reduced the company's workforce, number of employees | Employee     7      
Realignment plan reduced the company's workforce, percentage     58.00%      
Realignment plan, one-time employee related severance expenses         $ 1,200,000  
One-time payment received   $ 15,000,000.0   $ 15,000,000.0    
Cash and cash equivalents         $ 36,816,128 $ 42,604,935
Former Shareholders of Aadi [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Expected ownership percentage on common stock 29.60%          
Company Shareholders (immediately prior to closing of the Merger) [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Expected ownership percentage on common stock 14.70%          
PIPE Investors [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Expected ownership percentage on common stock 55.70%          
Merger Agreement [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Date of acquisition agreement May 16, 2021          
Threshold minimum cash and cash equivalents balance $ 10,000,000.0          
Termination fees $ 2,000,000.0          
Merger Agreement [Member] | Current Shareholders of Aadi [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Ownership percentage of combined company upon closing of merger 66.80%          
Merger Agreement [Member] | Current Shareholders of Aerpio [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Ownership percentage of combined company upon closing of merger 33.20%          
Merger Agreement [Member] | Maximum [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Out-of-pocket fees and expenses $ 750,000          
Merger Agreement [Member] | Subscription Agreements [Member] | Private Investment in Public Equity [Member]            
Organization Consolidation And Presentation Of Financial Statements [Line Items]            
Aggregate proceeds from issuance of common stock $ 155,000,000.0