Equity Investment in Affiliate - Income Statement (Details) - Micro Bird Holdings, Inc. - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Schedule of Equity Method Investments [Line Items]
Revenues	$ 108,767	$ 109,777	$ 77,632
Gross profit	14,724	13,278	9,044
Operating income	8,125	8,003	4,373
Net income	$ 5,788	$ 5,760	$ 2,440