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		6 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Earnings Per Share [Abstract]
Net income (loss)	$ (1,071)	$ 14,160	$ 4,235	$ 24,661
Weighted average common shares outstanding (in shares)	19,193	19,251	19,169	19,234
Effect of dilutive securities
Stock-based compensation (in shares)	168	190	192	159
Weighted average dilutive common shares outstanding (in shares)	19,361	19,441	19,361	19,393
Earnings (loss) per share
Basic (in dollars per share)	$ (0.06)	$ 0.74	$ 0.22	$ 1.28
Diluted (in dollars per share)	$ (0.06)	$ 0.73	$ 0.22	$ 1.27