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Warranties
 3 Months Ended
Apr. 30, 2021
Product Warranties Disclosures [Abstract]  
Warranties WARRANTIES
Accruals necessary for product warranties are estimated based on historical warranty costs and average time elapsed between purchases and returns for each division. Additional accruals are made for any significant, discrete warranty issues. Changes in the warranty accrual were as follows:
Three Months Ended
April 30,
2021		April 30,
2020
Beginning balance$2,068 $2,019 
Change in provision
704 390 
Settlements made
(117)(803)
Ending balance$2,655 $1,606