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Note 5 - Employee Benefit Plans (Details) (USD $)
 12 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Note 5 - Employee Benefit Plans (Details) [Line Items]    
Defined Contribution Plan Vested Term 3 years  
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 400,000 $ 500,000
Deferred Profit Sharing Contribution [Member]
    
Note 5 - Employee Benefit Plans (Details) [Line Items]    
Defined Contribution Plan, Employer Discretionary Contribution Amount 0 0
NQDC Plan [Member]
    
Note 5 - Employee Benefit Plans (Details) [Line Items]    
Defined Contribution Plan, Employer Discretionary Contribution Amount 0  
Deferred Compensation Arrangement With Individual Service Term 3 years  
Deferred Compensation Liability, Current and Noncurrent 800,000 600,000
NQDC Plan [Member] | Less Than [Member]
    
Note 5 - Employee Benefit Plans (Details) [Line Items]    
Defined Contribution Plan, Employer Discretionary Contribution Amount   100,000
Other Postretirement Benefit Plan, Defined Benefit [Member]
    
Note 5 - Employee Benefit Plans (Details) [Line Items]    
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase 50.00%  
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation 100,000  
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components 100,000  
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components 100,000  
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation 100,000  
Less Than [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
    
Note 5 - Employee Benefit Plans (Details) [Line Items]    
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year $ 100,000