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Stock-Based Compensation (Narrative) (Details)
3 Months Ended
Oct. 01, 2018
item
shares
Nov. 30, 2018
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares issued under terms of the award   11,129
Number of shares reduced, withheld for minimum statutory taxes   320
Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of tranches | item 3  
Life of awards 3 years  
Expiration date Aug. 31, 2021  
Employee Stock Purchase Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Price of common stock as a percent of the average fair market value   85.00%
Shares issued to employee stock purchase plan participants   10,488
Time-Based Award [Member] | Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of tranches | item 1  
Performance-Based Award [Member] | Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of tranches | item 2  
Tranche One [Member] | Time-Based Award [Member] | Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percent of shares plan participants are entitled to 25.00%  
Vesting period of awards 3 years  
Shares issued under terms of the award 36,470  
Tranche Two and Three [Member] | Performance-Based Award [Member] | Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percent of performance-based objectives 100.00%  
Shares issued under terms of the award 109,409  
Tranche Two and Three [Member] | Performance-Based Award [Member] | Minimum [Member] | Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percent of performance award to be granted 50.00%  
Tranche Two and Three [Member] | Performance-Based Award [Member] | Maximum [Member] | Fiscal 2019 Long Term Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Percent of performance award to be granted 200.00%  
New shares granted 218,818