Discontinued Operations and Sale of Assets Held for sale - Discontinued Operation Income / Loss, net (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Jun. 30, 2018	Dec. 30, 2017	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Discontinued Operations and Disposal Groups [Abstract]
Gain (loss) in discontinued operations		$ (2)
Net sales	$ 0		$ 7,920	$ 0	$ 20,296
Cost of sales	0		5,349	0	14,337
Operating expenses	0		2,771	0	6,924
Tangible Asset Impairment Charges	0		1,249	0	1,249
Other expense	0		5	0	173
Loss from discontinued operations	0		(1,454)	0	(2,387)
Loss on disposal of discontinued operations	0		0	(2)	0
Total loss on discontinued operations	0		(1,454)	(2)	(2,387)
Income tax expense (benefit)	0		300	0	0
Net loss from discontinued operations	$ 0		$ (1,754)	$ (2)	$ (2,387)