Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 1,286	$ 14,601	$ 244	$ 12,708
Other comprehensive income, net of tax
Net change in defined benefit pension plan	327	524	980	1,572
Total other comprehensive income	327	524	980	1,572
Comprehensive income	$ 1,613	$ 15,125	$ 1,224	$ 14,280