Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Oct. 31, 2020
Income Tax Disclosure [Abstract]        
Income tax expense $ 1,823 $ 1,100 $ 6,132 $ 2,888
Reserve related to several open fiscal years not under audit $ 1,300   $ 1,300