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Stockholders' Equity - Common Stock - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Jan. 01, 2024
Dec. 31, 2023
Oct. 12, 2022
Dec. 31, 2023
Jan. 26, 2024
Mar. 31, 2023
Jul. 25, 2022
Mar. 31, 2021
Jan. 29, 2021
Jan. 19, 2021
Class Of Stock [Line Items]                    
Securities authorized for offer and sale, amount                   $ 150,000,000
Number of shares subject to outstanding   695,459   695,459   1,451,217        
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       Feb. 22, 2021            
ATM Prospectus Supplement [Member]                    
Class Of Stock [Line Items]                    
Issuance of common stock from stock options exercises, net, Shares       2,515,483            
Value of shares sold under equity distribution agreement       $ 22,900,000            
2021 Shelf [Member]                    
Class Of Stock [Line Items]                    
Common stock value reserved for future issuance   $ 100,000,000   100,000,000            
2024 Shelf [Member] | Subsequent Event [Member]                    
Class Of Stock [Line Items]                    
Securities authorized for offer and sale, amount         $ 150,000,000          
IPO [Member]                    
Class Of Stock [Line Items]                    
Securities authorized for offer and sale, amount   100,000,000   100,000,000            
At-The-Market Facility [Member] | ATM Prospectus Supplement [Member]                    
Class Of Stock [Line Items]                    
Common stock value reserved for future issuance   $ 27,100,000   $ 27,100,000            
Issuance of common stock from stock options exercises, net, Shares   934,621   934,621            
At-The-Market Facility [Member] | ATM Prospectus Supplement [Member] | Subsequent Event [Member]                    
Class Of Stock [Line Items]                    
Issuance of common stock from stock options exercises, net, Shares 201,319                  
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] | Maximum [Member] | Subsequent Event [Member]                    
Class Of Stock [Line Items]                    
Common stock value reserved for future issuance         $ 2,605,728