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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Apr. 30, 2022
Accounting Policies [Abstract]  
Activity in Allowance for Doubtful Accounts
A summary of activity in the allowance for doubtful accounts is as follows:
Three Months Ended April 30,
20212022
Balance, beginning of period$88 $151 
Charged to (recovery of) bad debt expense(12)16 
Other(24)— 
Translation adjustments— (1)
Balance, end of period$52 $166