Earnings (Loss) Per Share (Schedule of Earnings per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Earnings Per Share [Abstract]
Net income (loss)	$ 4,389	$ 13,585	$ 8,624	$ 38,246
Weighted average common shares outstanding (in shares)	19,229	19,297	19,189	19,255
Effect of dilutive securities
Stock-based compensation (in shares)	86	223	160	181
Weighted average dilutive common shares outstanding (in shares)	19,315	19,520	19,349	19,436
Earnings per share
Basic (in dollars per share)	$ 0.23	$ 0.70	$ 0.45	$ 1.99
Diluted (in dollars per share)	$ 0.23	$ 0.70	$ 0.45	$ 1.97