Earnings Per Share (Schedule of Earnings per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 43,067	$ 61,328	$ 25,084
Weighted average common shares outstanding (in shares)	19,258	19,163	19,040
Effect of dilutive securities
Stock-based compensation (in shares)	189	130	97
Weighted average dilutive common shares outstanding (in shares)	19,447	19,293	19,137
Earnings per share
Basic (in dollars per share)	$ 2.24	$ 3.20	$ 1.32
Diluted (in dollars per share)	$ 2.21	$ 3.18	$ 1.31