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Note 6 - Stock-based Compensation (Tables)
6 Months Ended
Aug. 26, 2018
Notes Tables  
Share-based Compensation, Stock Options, Activity [Table Text Block]
   
Outstanding
Options
   
Weighted
Average
Exercise Price
   
Weighted Average
Remaining Contractual
Term (in years)
 
Balance, February 25, 2018
 
 
885,554
   
$
17.55
   
 
 
 
Granted
   
2,650
     
17.75
     
 
 
Exercised
   
(35,537
)    
17.55
     
 
 
Terminated or expired
   
(99,413
)    
19.63
     
 
 
Balance, August 26, 2018
 
 
753,254
   
$
17.28
   
 
5.03
 
Vested and exercisable, August 26, 2018
 
 
628,548
   
$
18.01
   
 
4.66