Retirement Benefit Plan (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Special termination benefits	$ 191
Expected rate of return on plan assets	5.50%	5.20%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Special termination benefits contractual term, Period	6 years
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Special termination benefits contractual term, Period	2 years 9 months 18 days