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Note 9 - Equity Compensation (Detail) (USD $)
9 Months Ended 12 Months Ended
Apr. 02, 2012
Apr. 02, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Jul. 02, 2010
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)     2,800,000      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)     686,353      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number (in Shares)     1,404,400 1,192,814 1,051,211  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized (in Dollars)     $ 442,888      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)     36,000 288,200 648,500  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit         $ 5.37  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit         $ 8.40  
Share-Based Compensation Valuation Assumptions Expected Forfeiture Rate 4.10% 3.60%     6.55% 3.00%
Stock or Unit Option Plan Expense (in Dollars)     410,000 851,000 2,633,000  
Share Based Compensation Arrangement By Share Based Payment Award Options Expected To Vest Exercisable Number (in Shares)     593,168      
Share Based Compensation Arrangement By Share Based Payment Award Options Expected To Vest Exercisable Weighted Average Exercise Price     $ 7.23      
Share Based Compensation Arrangement By Share Based Payment Award Options Expected To Vest Exercisable Aggregate Intrinsic Value (in Dollars)     411,410      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term     7 years 6 months      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value (in Dollars)     3,365 6,526    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)     7,076 6,256 6,848  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 51,700 $ 40,900 $ 45,538  
Treasury Stock, Shares (in Shares)     266,615 244,868    
Treasury Stock, Value (in Dollars)     2,641,000 2,499,700    
Treasury Stock, Value, Acquired, Cost Method (in Dollars)     (141,000) (96,000) 52,000  
Employee Stock Option [Member]
           
Stock or Unit Option Plan Expense (in Dollars)     410,550 851,755    
Treasury Stock [Member]
           
Treasury Stock, Value, Acquired, Cost Method (in Dollars)     $ 141,300 $ 117,900    
Total [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares)     2,006,250      
Minimum [Member]
           
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     $ 6.68 $ 4.84    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 2.45 $ 1.60 $ 1.87  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term     9 years 5 months 9 years 9 years 10 months  
Treasury Stock Acquired, Repurchase Authorization     22,000      
Maximum [Member]
           
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit     $ 7.22 $ 8.92    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 2.60 $ 3.37 $ 2.87  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term     9 years 8 months 9 years 5 months    
Treasury Stock Acquired, Repurchase Authorization     24,000