Restructuring (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	0 Months Ended	3 Months Ended	0 Months Ended
	Mar. 31, 2014 Employee Termination Costs	Oct. 31, 2013 Fiscal 2014 Restructuring employees	Dec. 31, 2013 Fiscal 2014 Restructuring Employee Termination Costs	Sep. 27, 2013 Fiscal 2013 Restructuring employees	Sep. 27, 2013 Fiscal 2013 Restructuring Employee Termination Costs	Apr. 26, 2012 Fiscal 2012 Restructuring employees	Apr. 26, 2012 Fiscal 2012 Restructuring Employee Termination Costs	Apr. 26, 2012 Fiscal 2012 Restructuring Other
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated		40		15		30
Beginning Balance	$ 350
Restructuring charge	152		200		400	1,000	600	400
Payments	(428)
Reversals	(71)
Ending Balance	$ 3