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Schedule II - Valuation and Qualifying Accounts and Reserves
 12 Months Ended
Jan. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts and Reserves
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
 
Description
   
Balance at
Beginning
of Year
     
Provision/
(Benefit)
Charged to
Operations
     
Deductions(2)
    
Balance
at End
of Year
  
Allowance for Doubtful Accounts(1):
                                   
(In thousands)                           
Year Ended January 31,
                                   
2021
    $ 856      $ 194      $ 4     $ 1,054  
2020
    $ 521      $ 546      $ (211 )    $ 856  
2019
    $ 377      $ 310      $ (166 )    $ 521  
 
(1)
The allowance for doubtful accounts has been netted against accounts receivable in the balance sheets as of the respective balance sheet dates.
(2)
Uncollectible accounts written off, net of recoveries.