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
Jun. 30, 2013
Jul. 01, 2012
Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount $ 13,024   $ 13,054
Weighted Average Estimated Useful Life 9 years    
Accumulated Amortization 7,201   7,064
Amortization Expense 183 187  
Trademarks and Trade Names [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount 1,987    
Weighted Average Estimated Useful Life 15 years    
Accumulated Amortization 569    
Amortization Expense 33 33  
Licensing Agreements [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount 3,571    
Weighted Average Estimated Useful Life 3 years    
Accumulated Amortization 3,571    
Amortization Expense 2 2  
Noncompete Agreements [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount 454    
Weighted Average Estimated Useful Life 7 years    
Accumulated Amortization 350    
Amortization Expense 14 14  
Patents [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount 553    
Weighted Average Estimated Useful Life 10 years    
Accumulated Amortization 171    
Amortization Expense 14 14  
Customer Relationships [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount 5,411    
Weighted Average Estimated Useful Life 12 years    
Accumulated Amortization 2,540    
Amortization Expense 120 121  
Internally Developed Intangible Assets [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Carrying Amount 1,048    
Amortization Expense   $ 3