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Balance Sheet - Continuing Operations
 6 Months Ended
Jul. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Balance Sheet - Continuing Operations
6. Balance Sheet
—
Continuing Operations
 
    
As of
July 31, 2021
     
As of
January 31, 2021
  
 
 
 
 
     (in thousands)  
Accounts receivable
    $ 5,581      $ 5,695  
Less allowance for doubtful accounts
      (481 )       (948 ) 
    
 
 
     
 
 
  
Accounts receivable net of allowance for doubtful accounts
    $ 5,100      $ 4,747  
    
 
 
     
 
 
  
 
    
July 31,
 
2021
     
January 31,
 
2021
  
 
 
 
 
     (in thousands)  
Inventories:
                  
Raw materials
    $ 7,468      $ 6,905  
Finished goods
      3,455        3,466  
Work in progress
      2,404        2,445  
    
 
 
     
 
 
  
       13,327        12,816  
Less allowance for obsolescence
      (1,399 )       (1,363 ) 
    
 
 
     
 
 
  
Total inventories, net
    $ 11,928      $ 11,453  
    
 
 
     
 
 
  
 
    
July 31,
 
2021
     
January 31,
 
2021
  
 
 
 
 
     (in thousands)  
Property and equipment:
                  
Marine seismic service equipment
    $ 4,157      $ 5,969  
Land and buildings
      4,422        4,354  
Furniture and fixtures
      9,899        9,750  
Autos and trucks
      491        491  
    
 
 
     
 
 
  
       18,969        20,564  
Accumulated depreciation and amortization
      (14,529 )       (15,813 ) 
    
 
 
     
 
 
  
Total property and equipment, net
    $ 4,440      $ 4,751  
    
 
 
     
 
 
  
As of January 31, 2021, the Company completed an annual review of long-lived assets noting that the
undiscounted
future cash flows exceeded
their
carrying value and no impairment was recorded. Since January 31, 2021, there have been no significant changes to the market, economic or legal environment in which the Company operates that would indicate additional impairment analysis is necessary as of July 31, 2021.