Segment Information - Reconciliation of Segment Gross Profit (Details) - USD ($) $ in Thousands	3 Months Ended
Jan. 01, 2022	Jan. 02, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross profit	$ 16,197	$ 14,468
Selling, general and administrative expenses	(18,233)	(14,690)
Interest expense	(3,082)	(1,930)
Interest income	0	1
Other income, net	736	643
Loss on debt modification	(561)	(598)
Loss before income taxes	(4,943)	(2,106)
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross profit	16,197	14,468
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Selling, general and administrative expenses	(18,233)	(14,690)
Interest expense	(3,082)	(1,930)
Interest income	0	1
Other income, net	736	643
Loss on debt modification	$ (561)	$ (598)

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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