Annual report pursuant to Section 13 and 15(d)

COVID-19 - CARES Act. provision (Additional Information) (Details)

v3.22.1
COVID-19 - CARES Act. provision (Additional Information) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2022
Jun. 21, 2021
Jan. 31, 2021
Apr. 21, 2020
Unusual Risk or Uncertainty [Line Items]        
Debt instrument face amount   $ 15,000    
CARES Act [Member] | Impact Of PPP Loan Under CARES Act [Member] | Other Current And Long Term Liabilities [Member]        
Unusual Risk or Uncertainty [Line Items]        
Payroll tax deferral amount $ 689      
CARES Act [Member] | Impact Of PPP Loan Under CARES Act [Member] | Due On December Thirty One Two Thousand Twenty One [Member]        
Unusual Risk or Uncertainty [Line Items]        
Percentage of deferred payroll taxes amount due year one 50.00%      
CARES Act [Member] | Payback Protection Program Loan [Member]        
Unusual Risk or Uncertainty [Line Items]        
Debt instrument face amount       $ 5,580
Debt instrument frequency of periodic payment monthly      
Debt instrument date of first required payment Sep. 15, 2021      
Interest rate 1.00%      
Interest accrual on loan     $ 44