Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.22.2.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2022
Jul. 31, 2021
Income Taxes Disclosure [Line Items]        
Income tax benefit $ 5 $ 83 $ 4 $ 49
Maximum {Member]        
Income Taxes Disclosure [Line Items]        
Income tax benefit $ 100 $ 100 $ 100 $ 100