Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail)

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Goodwill and Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jul. 31, 2022
Jul. 31, 2021
Jul. 31, 2022
Jul. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]        
Goodwill, beginning balance     $ 9,882,000  
Translation adjustment     (675,000)  
Impairment $ (5,843,000) $ 0 (5,843,000) $ 0
Goodwill, ending balance $ 3,364,000   $ 3,364,000