Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Balance, beginning of year	$ 638	$ 888	$ 896
Amounts charged to earnings	(244)	5	79
Write-offs, net of recoveries	(103)	(255)	(87)
Balance, end of year	$ 291	$ 638	$ 888