Note 3 - Correction of Immaterial Errors (Tables)
 12 Months Ended
Jan. 31, 2020
Notes Tables  
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]
(In thousands)
  
As Reported
    
Adjustment
    
Revised
  
Other long-term liabilities
   $
688
     $
659
     $
1,347
  
Total long-term liabilities
    
12,757
      
659
      
13,416
  
Accumulated deficit
    
(3,632
 )    
(659
 )    
(4,291
 )
Total stockholders' equity
    
52,360
      
(659
 )    
51,701
  
(In thousands)
  
As Reported
    
Adjustment
    
Revised
  
Cost of Sales
   $
105,626
     $
21
     $
105,647
  
Gross profit
    
23,339
      
(21
 )    
23,318
  
Income from operations
    
2,743
      
(21
 )    
2,722
  
Income from operations before income taxes
    
1,621
      
(21
 )    
1,600
  
Net loss
    
(529
 )    
(21
 )    
(550
 )
(In thousands)
  
As Reported
    
Adjustment
    
Revised
  
Net loss
   $
(529
 )   $
(21
 )   $
(550
 )
Comprehensive loss
    
(1,943
 )    
(21
 )    
(1,964
 )
(In thousands)
  
As Reported
    
Adjustment
    
Revised
  
Net loss
   $
(529
 )   $
(21
 )   $
(550
 )
Other assets and liabilities
    
508
      
21
      
529
  
(In thousands)
  
As Reported
    
Adjustment
    
Revised
  
Net loss
   $
(529
 )   $
(21
 )   $
(550
 )
Accumulated deficit
    
(3,632
 )    
(659
 )    
(4,291
 )
Stockholders' equity
    
52,360
      
(659
 )    
51,701
  
(In thousands)
  
As Reported
    
Adjustment
    
Revised
  
Accumulated deficit
   $
(3,103
 )   $
(638
 )   $
(3,741
 )
Stockholders' equity
    
51,812
      
(638
 )   $
51,174