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Note 2 - Stock Based Compensation (Details) (USD $)
3 Months Ended 6 Months Ended
Sep. 26, 2014
Sep. 27, 2013
Jun. 28, 2013
Sep. 26, 2014
Sep. 27, 2013
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars) $ 0 $ 600   $ 0 $ 600
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)   50,000 40,000    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) $ 49,000     $ 49,000  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition       328 days  
Employee Stock Option [Member] | Minimum [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       1 year  
Employee Stock Option [Member] | Maximum [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       4 years  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period       10 years  
Employee Stock Option [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term       6 years 109 days 6 years 109 days
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate       68.00% 68.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate       0.00% 0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate       1.10% 1.10%
Share Based Compensation Arrangement By Share Based PaymentAwardFairValueAssumptionsExpectedForfeitures       26.00% 22.00%
Restricted Stock [Member] | Minimum [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       6 months  
Restricted Stock [Member] | Maximum [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       4 years  
Restricted Stock [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares) 0 50,000      
2007 Equity Incentive Plan [Member]
         
Note 2 - Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 2,500,000     2,500,000  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares) 262,095     262,095