Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.10.0.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Allocated share-based compensation expense $ 0.6 $ 0.5
Restricted Stock Units (RSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Instruments payable in common stock (percentage)   0.5
Instrument payable in cash (percentage)   50.00%
2010 Stock Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Aggregate number of shares that may be delivered (shares) 500,000  
Total compensation cost not yet recognized $ 2.6  
Period for recognition (in year) 2 years  
Upon Filing of Annual Report in 2018 | Restricted Stock Units (RSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vested in the period (shares) 205,000  
Upon Filing of Annual Report in 2017 | Performance Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vested in the period (shares) 42,000 92,068
Instruments paid in common stock, (shares)   72,138
Instruments paid in cash, (shares)   19,930
Upon Filing of Annual Report in 2017 | Restricted Stock Units (RSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vested in the period (shares)   54,602