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Note 6 - Stock-based Compensation (Tables)
 3 Months Ended
May 30, 2021
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   
Outstanding
Options
    
Weighted
Average
Exercise Price
    
Weighted Average
Remaining Contractual
Term (in years)
    
Aggregate
Intrinsic
Value
  
                                 
Balance, February 28, 2021
  
 
634,534
    
$
12.47
    
 
 
 
  
$
1,872
  
Granted
    
142,250
      
13.85
      
 
      
 
  
Exercised
    
-
      
-
      
 
      
 
  
Terminated or expired
    
(30,300
 )    
14.00
      
 
      
 
  
Balance, May 30, 2021
  
 
746,484
    
$
12.67
    
 
5.74
    
$
2,053
  
Vested and exercisable, May 30, 2021
  
 
473,734
    
$
12.07
    
 
3.73
    
$
1,587