Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Summary of Financial Assets Measured at Fair Value (Detail)

v3.23.1
Fair Value Measurements - Summary of Financial Assets Measured at Fair Value (Detail) - USD ($)
Jan. 31, 2023
Jan. 31, 2022
Fair Value Measurements Disclosure [Line Items]    
Marketable securities $ 1,244,000  
Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements Disclosure [Line Items]    
Cash equivalents 2,389,000 $ 0
Marketable securities   $ 0
Financial assets measured at fair value 3,633,000  
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]    
Fair Value Measurements Disclosure [Line Items]    
Marketable securities 1,244,000  
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value Measurements Disclosure [Line Items]    
Cash equivalents 2,389,000  
Financial assets measured at fair value 3,633,000  
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]    
Fair Value Measurements Disclosure [Line Items]    
Marketable securities $ 1,244,000