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Stock-Based Compensation (Stock Options & Restricted Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015	Sep. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Weighted average per share fair value of stock options granted (in dollar per share)	$ 8.91	$ 11.71	$ 12.16
Weighted average remaining contractual term of options outstanding, in years	5 years
Aggregate intrinsic value of options outstanding	$ 1,899
Weighted average remaining contractual term of options eligible for exercise, in years	3 years 8 months 4 days
Aggregate intrinsic value of options eligible for exercise	$ 18
Total intrinsic value of stock options exercised	$ 1,467	$ 1,082	$ 2,484
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	5 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	7 years
Director [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years