Capital Assets (Other Capital Assets) (Details) (USD $)	3 Months Ended			9 Months Ended
	Jun. 30, 2012	Oct. 01, 2011	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 32,998,000	$ 35,012,000		$ 32,998,000
Accumulated Amortization	(9,151,000)	(9,169,000)		(9,151,000)
Net Carrying Value	23,847,000	25,843,000		23,847,000
Weighted average useful life (in years)	14 years 3 months 18 days	13 years 7 months 6 days
Amortization expense	900,000		800,000	2,600,000	2,400,000
Software development costs [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,848,000	15,370,000		15,848,000
Accumulated Amortization	(5,433,000)	(3,574,000)		(5,433,000)
Net Carrying Value	10,415,000	11,796,000		10,415,000
Weighted average useful life (in years)	5 years 8 months 12 days	5 years 9 months 18 days
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,963,000	9,903,000		9,963,000
Accumulated Amortization	(2,661,000)	(2,114,000)		(2,661,000)
Net Carrying Value	7,302,000	7,789,000		7,302,000
Weighted average useful life (in years)	15 years 3 months 18 days	15 years 3 months 18 days
Trademarks and trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,959,000	5,924,000		5,959,000
Accumulated Amortization	(967,000)	(815,000)		(967,000)
Net Carrying Value	4,992,000	5,109,000		4,992,000
Weighted average useful life (in years)	30 years 2 months 12 days	30 years 2 months 12 days
Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		2,596,000
Accumulated Amortization		(2,596,000)
Weighted average useful life (in years)		3 years
Land-use rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,228,000	1,219,000		1,228,000
Accumulated Amortization	(90,000)	(70,000)		(90,000)
Net Carrying Value	$ 1,138,000	$ 1,149,000		$ 1,138,000
Weighted average useful life (in years)	47 years 9 months 18 days	47 years 9 months 18 days