Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Earnings Per Share, Basic and Diluted [Abstract]
Weighted average shares outstanding—basic (in shares)	24,264,000	23,971,000
Dilutive effect of employee stock awards (in shares)	191,000	189,000
Weighted average shares outstanding—diluted (in shares)	24,455,000	24,160,000
Net income	$ 144	$ 5,793
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Dilutive securities excluded from calculation of dilutive shares	2,184	9,876