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Stockholders' Equity - Common Stock - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended
May 13, 2024
May 08, 2024
Dec. 31, 2024
Oct. 12, 2022
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Jan. 26, 2024
Jul. 25, 2022
Mar. 31, 2021
Jan. 29, 2021
Class Of Stock [Line Items]                      
Proceeds from issuance of common stock, net         $ 5,662,000 $ 1,173,000          
Number of shares subject to outstanding     1,769,703   1,769,703   698,007        
Common Warrants [Member]                      
Class Of Stock [Line Items]                      
Issuance of common stock from stock options exercises, net, Shares   5,000,000                  
Issuance of warrants   1,562,500                  
Excercise price per share   $ 0.8                  
Warrants exercise price per share   $ 0.8 $ 0.8   $ 0.8   $ 0        
Warrant expiration period   5 years                  
Pre-Funded Warrants [Member]                      
Class Of Stock [Line Items]                      
Excercise price per share   $ 0.799                  
Warrants exercise price per share   $ 0.001 $ 0.001   $ 0.001   $ 0        
2021 Inducement Equity Plan [Member]                      
Class Of Stock [Line Items]                      
Common shares authorized to be issued                   750,000  
Equity Incentive Plan 2022 [Member]                      
Class Of Stock [Line Items]                      
Common shares authorized to be issued       1,363,000         750,000    
Excercise price per share       $ 2.75              
Equity Incentive Plan 2022 [Member] | Common Stock [Member]                      
Class Of Stock [Line Items]                      
Common shares authorized to be issued       50,000              
Equity Incentive Plan 2012 [Member]                      
Class Of Stock [Line Items]                      
Common shares authorized to be issued       1,236,738              
Common stock shares issued       126,262              
2022 Inducement Equity Plan [Member]                      
Class Of Stock [Line Items]                      
Common shares authorized to be issued     1,000 1,000 1,000            
Maximum [Member] | Equity Incentive Plan 2022 [Member] | Common Stock [Member]                      
Class Of Stock [Line Items]                      
Common shares authorized to be issued       51,000              
2018 Sales Agreement [Member]                      
Class Of Stock [Line Items]                      
Equity sales agreement expiration date         Jan. 29, 2024            
2024 Shelf [Member]                      
Class Of Stock [Line Items]                      
Securities authorized for offer and sale, amount               $ 150,000,000      
Common stock value reserved for future issuance     $ 100,000,000   $ 100,000,000            
IPO [Member]                      
Class Of Stock [Line Items]                      
Securities authorized for offer and sale, amount     $ 150,000,000   $ 150,000,000            
Issuance of common stock from stock options exercises, net, Shares   1,562,500                  
Initial offering date   May 8, 2024                  
Net proceeds from issuance of offerings $ 4,500,000                    
IPO [Member] | JonesTrading Institutional Services LLC [Member]                      
Class Of Stock [Line Items]                      
Cash fee percentage of aggregate gross proceeds raised in offering   5.00%                  
IPO [Member] | Common Warrants [Member]                      
Class Of Stock [Line Items]                      
Issuance of common stock from stock options exercises, net, Shares   5,000,000                  
IPO [Member] | Maximum [Member] | Common Warrants [Member]                      
Class Of Stock [Line Items]                      
Issuance of warrants   5,000,000                  
At-The-Market Facility [Member]                      
Class Of Stock [Line Items]                      
Issuance of common stock from stock options exercises, net, Shares     52,628   1,405,228            
Net proceeds from issuance of offerings         $ 1,700,000            
At-The-Market Facility [Member] | Maximum [Member]                      
Class Of Stock [Line Items]                      
Proceeds from issuance of common stock, net     $ 100,000                
At-The-Market Facility [Member] | ATM Prospectus Supplement [Member] | Maximum [Member]                      
Class Of Stock [Line Items]                      
Common stock value reserved for future issuance                     $ 50,000,000
At-The-Market Facility [Member] | 2024 ATM Prospectus [Member]                      
Class Of Stock [Line Items]                      
Common stock value reserved for future issuance     $ 800,000   $ 800,000            
Issuance of common stock from stock options exercises, net, Shares         1,441,630            
Value of shares sold under equity distribution agreement         $ 1,800,000            
Value of shares sold under equity distribution agreement, net         1,800,000            
At-The-Market Facility [Member] | 2024 ATM Prospectus [Member] | Maximum [Member]                      
Class Of Stock [Line Items]                      
Common stock value reserved for future issuance               $ 2,605,728      
At-The-Market Facility [Member] | 2024 Shelf [Member]                      
Class Of Stock [Line Items]                      
Proceeds from issuance of common stock, net         $ 1,700,000