Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v3.19.1
Stock-Based Compensation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 30, 2019
Dec. 29, 2018
Mar. 31, 2018
Dec. 30, 2017
Mar. 30, 2019
Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Allocated share-based compensation expense $ 0.6   $ 0.7   $ 1.3 $ 1.2
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Instruments payable in common stock (percentage)       27,302    
Instrument payable in cash (percentage)       2730200.00%    
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       500,000  
Total compensation cost not yet recognized $ 2.2       $ 2.2  
Period for recognition (in year)         1 year 8 months 12 days  
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