Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Detail)

v3.22.1
Significant Accounting Policies - Additional Information (Detail) - USD ($)
 3 Months Ended
Apr. 30, 2015
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2019
Summary Of Significant Accounting Policies [Line Items]        
Revenue   $ 215,961 $ 145,065  
Research and development expense, total   3,527,146 4,591,244  
Liability for unrecognized tax benefits   0    
Interest or penalties for uncertain tax positions   $ 0 $ 0  
Antidilutive securities excluded from computation of earnings per share, amount   5,682,499 7,137,741  
Class of Warrant or Right, Exercise Price of Warrants or Rights       $ 10.00
ASU 2021-04        
Summary Of Significant Accounting Policies [Line Items]        
Change in Accounting Principle, Accounting Standards Update, Adopted   true    
Change in Accounting Principle, Accounting Standards Update, Adoption Date   Dec. 15, 2021    
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect   true    
ASU 2021-10        
Summary Of Significant Accounting Policies [Line Items]        
Change in Accounting Principle, Accounting Standards Update, Adopted   true    
Change in Accounting Principle, Accounting Standards Update, Adoption Date   Dec. 15, 2021    
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect   true    
Warrants Issued to Private Investors [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount   3,284,789 3,284,789  
Warrants Issued to Private Investors [Member] | Expiring on October 6 2022        
Summary Of Significant Accounting Policies [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount   1,618,123    
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 23.00    
Warrants Issued to Private Investors [Member] | Expiring on March 1 2024        
Summary Of Significant Accounting Policies [Line Items]        
Antidilutive securities excluded from computation of earnings per share, amount   1,666,666    
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 10.00    
Employee Stock Purchase Plan [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Common stock purchase price discount percentage 85.00% 15.00%    
Product Development Projects Revenue [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Revenue   $ 215,961 $ 145,065