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Stockholders' Equity - Stock Options and Employee Stock Purchase Plan - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Aug. 28, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Oct. 31, 2023
Class Of Stock [Line Items]            
Voluntarily forfeited outstanding stock options       593,384    
Expired, Options Outstanding       333,631    
Stock-based compensation   $ 157,000 $ 544,000 $ 1,307,000 $ 1,877,000  
Weighted-average remaining contractual term of stock options exercisable       7 years 4 months 9 days    
Number of common stock shares approved under ESPP   2,509,149   2,509,149    
Expected term   6 years 6 years 6 years 6 years  
Executive Chairman [Member]            
Class Of Stock [Line Items]            
Voluntarily forfeited outstanding stock options 462,500          
Unvested, cancelled shares 312,918          
Expired, Options Outstanding 149,582          
Executive Chairman [Member] | Selling, General and Administrative Expenses [Member]            
Class Of Stock [Line Items]            
Stock-based compensation $ 519,000          
2016 Employee Stock Purchase Plan [Member]            
Class Of Stock [Line Items]            
Number of common stock shares approved under ESPP   75,000   75,000    
2023 Employee Stock Purchase Plan [Member]            
Class Of Stock [Line Items]            
Number of common stock shares approved under ESPP           45,000
Employee subscription rate   15.00%   15.00%    
Compensation amount per employee       $ 25,000    
Number of shares per employee       500    
Fair market value at discount       85.00%    
Purchase period       6 months    
Initial offering period       2024-03    
Description of plan       Shares under the 2023 ESPP are purchased at 85 percent of the fair market value at the lower of (i) the closing price on the first trading day of the six-month purchase period or (ii) the closing price on the last trading day of the six-month purchase period.    
Equity Incentive Plan 2022 [Member]            
Class Of Stock [Line Items]            
Stock options granted   40,000   171,257    
Number of common stock shares approved under ESPP   1,643,798   1,643,798