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Note 3 - Stock-Based Compensation (Tables)
6 Months Ended
Sep. 28, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   
Number
of
Shares
   
Weighted
Average
Exercise
Price Per
Share
   
Weighted
Average
Remaining
Contractual
Term (in years)
   
Aggregate
Intrinsic
Value
 
Outstanding as of March 30, 2013
    554     $ 6.02                  
Granted
    100       7.57                  
Exercised
    (17 )     2.60                  
Cancelled/Forfeited
    (2 )     7.72                  
Outstanding as of September 28, 2013
    635       6.35       4     $ 912  
Exercisable as of September 28, 2013
    529       6.12       3       883