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Significant Accounting Policies (Narrative) (Detail) (USD $)
3 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Mar. 31, 2012
Mar. 30, 2013
Mar. 31, 2012
Jul. 25, 2012
Number of Options/SARs Outstanding
Jan. 26, 2012
Number of Options/SARs Outstanding
Jul. 27, 2011
Number of Options/SARs Outstanding
Mar. 30, 2013
Number of Options/SARs Outstanding
Dec. 31, 2011
Number of Options/SARs Outstanding
Dec. 31, 2011
Number of Options/SARs Outstanding
Mar. 30, 2013
Number of Options/SARs Outstanding
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Income tax benefit likely of being realized upon ultimate settlement   50.00%                
Share-based compensation, grants in period       210,666 32,000 184,666        
Strike price ( in dollars per share)       $ 7.44 $ 6.30 $ 4.40        
Grant date weighted average fair market value (in dollars per share)       $ 3.71 $ 3.08 $ 2.20        
Expected life                   3 years
Weighted average remaining contractual term                   5 years
Stock-based compensation expense             $ 222,000 $ 161,000 $ 461,000 $ 647,000
Unrecognized share based compensation expense $ 800,000   $ 800,000              
Share Based Expense Recognition - Weighted-average period     1 year 11 months 13 days              
Options exercised in the period (Shares) 6,667 7,500 54,167