Note 10 - Share-based Employee Compensation (Tables)
 6 Months Ended
Dec. 01, 2015
Notes Tables  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   
Stock Options
    
Weighted Average
Exercise Price
    
Weighted Average Remaining Contractual Term (years)
    
Aggregate Intrinsic Value
  
Service-based vesting:
                                
Balance at June 2, 2015
     2,441     $ 7.78                  
Cancellations and forfeitures
     (208
)
     6.61                  
Expired
     (96
)
     9.06                  
Balance at December 1, 2015
     2,137     $ 7.83       3.73     $ -  
Exercisable
     1,671     $ 8.21       3.23     $ -  
                                 
Market-based vesting:
                                
Balance at June 2, 2015
     515     $ 8.60                  
Cancellations and forfeitures
     (125
)
     9.34                  
Balance at December 1, 2015
     390     $ 8.36       4.24     $ -  
Exercisable
     -       -       -     $ -  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
           
Weighted-Average
  
   
Number of
   
Grant-Date
  
Service-based vesting:
  
Shares
    
Fair Value
  
Unvested at June 2, 2015
     803     $ 6.98  
Granted
     344       6.45  
Vested
     (217 )     7.09  
Forfeited
     (154 )     7.60  
Unvested at December 1, 2015
     776     $ 6.59  
           
Weighted-Average
  
   
Number of
    
Grant-Date
  
Market-based vesting:
  
Shares
    
Fair Value
  
Unvested at June 2, 2015
     -     $ -  
Granted
     262       6.51  
Unvested at December 1, 2015
     262     $ 6.51