Segment Information - Reconciliation of Segment Gross Profit (Details) - USD ($) $ in Thousands	3 Months Ended
Jan. 04, 2020	Dec. 29, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross profit	$ 21,300	$ 19,110
Selling, general and administrative expenses	(20,495)	(17,273)
Interest expense	(1,897)	(2,874)
Interest income	0	9
Other income (expense), net	194	(349)
Loss before income taxes	(898)	(1,377)
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment gross profit	21,300	19,110
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Selling, general and administrative expenses	(20,495)	(17,273)
Interest expense	(1,897)	(2,874)
Interest income	0	9
Other income (expense), net	$ 194	$ (349)

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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