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Note 6 - Stock-based Compensation (Tables)
6 Months Ended
Sep. 01, 2019
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   
Outstanding
Options
   
Weighted
Average
Exercise Price
   
Weighted Average
Remaining Contractual
Term (in years)
 
                         
Balance, March 3, 2019
 
 
540,709
   
$
13.49
   
 
 
 
Granted
   
114,450
     
16.44
     
 
 
Exercised
   
(29,174
)    
12.65
     
 
 
Terminated or expired
   
(66,750
)    
18.83
     
 
 
Balance, September 1, 2019
 
 
559,235
   
$
13.50
   
 
5.38
 
Vested and exercisable, September 1, 2019
 
 
415,726
   
$
13.10
   
 
4.12