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Note 6 - Stock-based Compensation (Tables)
9 Months Ended
Nov. 25, 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
   
(37,837
)    
17.50
     
 
 
Terminated or expired
   
(101,463
)    
19.59
     
 
 
Balance, November 25, 2018
 
 
748,904
   
$
17.28
   
 
4.78
 
Vested and exercisable, November 25, 2018
 
 
627,935
   
$
18.00
   
 
4.41