Annual report pursuant to Section 13 and 15(d)

Note 12 - Commitments and Contingencies (Details)

v2.4.0.8
Note 12 - Commitments and Contingencies (Details) (USD $)
 12 Months Ended
Mar. 30, 2014
Mar. 31, 2013
Note 12 - Commitments and Contingencies (Details) [Line Items]    
Operating Leases, Rent Expense $ 1,400,000 $ 1,600,000
Operating Leases, Future Minimum Payments Due 6,400,000  
Operating Leases, Future Minimum Payments Due, Next Twelve Months 1,200,000  
Operating Leases, Future Minimum Payments, Due in Three Years 1,000,000  
Operating Leases, Future Minimum Payments, Due in Four Years 1,000,000  
Operating Leases, Future Minimum Payments, Due in Five Years 1,000,000  
Operating Leases, Future Minimum Payments, Due in Two Years 1,000,000  
Royalty Expense 7,500,000 6,800,000
Royalty Expense Due 6,200,000  
Royalty Expense Due in Next Twelve Months 3,200,000  
Royalty Expense Due in Two Years 2,900,000  
Royalty Expense Due in Three Years 38,000  
Capitalized Patent Application Costs 58,000  
Capitalized Legal and Other Costs 990,000  
Loss Contingency, Range of Possible Loss, Maximum 1,000,000  
Due In 2020 [Member]
    
Note 12 - Commitments and Contingencies (Details) [Line Items]    
Operating Leases, Future Minimum Payments, Due Thereafter 1,000,000  
Due In 2021 [Member]
    
Note 12 - Commitments and Contingencies (Details) [Line Items]    
Operating Leases, Future Minimum Payments, Due Thereafter $ 173,000