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Stock-Based Compensation (Summary of Non-vested Restricted Stock Activity) (Details) - Restricted Stock [Member] - $ / shares
9 Months Ended
Jun. 27, 2017
Jun. 30, 2016
Shares    
Non-vested shares at beg of year 180,916  
Granted 103,440 44,755
Vested (20,815)  
Non-vested shares at June 27, 2017 263,541  
Grant Date Fair Value Per Share    
Granted   $ 4.18
Minimum [Member]    
Grant Date Fair Value Per Share    
Non-vested shares $ 3.23  
Granted 3.15  
Vested 3.20  
Non-vested shares at June 27, 2017 3.15  
Maximum [Member]    
Grant Date Fair Value Per Share    
Non-vested shares 8.60  
Granted 3.20  
Vested 8.23  
Non-vested shares at June 27, 2017 $ 8.60