XML 43 R31.htm IDEA: XBRL DOCUMENT v3.4.0.3
Note 5 (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Mar. 26, 2016
Dec. 26, 2015
Mar. 26, 2016
Mar. 28, 2015
Scenario, Previously Reported [Member]        
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 175,000    
Early Adoption of ASU 2016-09 [Member] | Employee Stock Option [Member] | First Quarter of Fiscal Year 2016 [Member]        
Prior Period Reclassification Adjustment   499,000    
Employee Stock Option [Member]        
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense $ 89,000      
Five Year Options [Member]        
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions Volatility Calculation Term     4 years 30 days  
Ten Year Options [Member]        
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions Volatility Calculation Term     10 years  
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 674,000    
Anticipated ShareBased Compensation Net Of Tax Benefits     $ 800,000  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate     15.90%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate     1.20%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate     1.40%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term     5 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     159,170 148,840
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 13.94 $ 15.23