Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Goodwill, Customer Relationships and Other Intangible Assets (Details) - Other Intangible Assets

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Note 2 - Goodwill, Customer Relationships and Other Intangible Assets (Details) - Other Intangible Assets (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Dec. 29, 2013
Dec. 30, 2012
Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]          
Carrying Amount $ 13,024   $ 13,024   $ 13,054
Weighted Average Estimated Useful Life 10 years        
Accumulated Amortization 7,581   7,581   7,064
Amortization Expense 194 193 563 574  
Trademarks and Trade Names [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Carrying Amount 1,987   1,987    
Weighted Average Estimated Useful Life 15 years        
Accumulated Amortization 635   635    
Amortization Expense 33 43 99 122  
Licensing Agreements [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Carrying Amount 3,571   3,571    
Weighted Average Estimated Useful Life 3 years        
Accumulated Amortization 3,571   3,571    
Amortization Expense   2 2 6  
Noncompete Agreements [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Carrying Amount 454   454    
Weighted Average Estimated Useful Life 7 years        
Accumulated Amortization 377   377    
Amortization Expense 13 13 41 41  
Patents [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Carrying Amount 1,601   1,601    
Weighted Average Estimated Useful Life 17 years        
Accumulated Amortization 216   216    
Amortization Expense 27 14 59 42  
Customer Relationships [Member]
          
Finite-Lived Intangible Assets [Line Items]          
Carrying Amount 5,411   5,411    
Weighted Average Estimated Useful Life 12 years        
Accumulated Amortization 2,782   2,782    
Amortization Expense $ 121 $ 121 $ 362 $ 363