Note 10 (Details Textual)	3 Months Ended		6 Months Ended
	Mar. 26, 2016 USD ($)	Mar. 28, 2015 USD ($)	Mar. 26, 2016 USD ($)	Mar. 28, 2015 USD ($)
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			3 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			20 years
Number of Reportable Segments			3
Amortization of Intangible Assets	$ 1,328,000	$ 1,352,000	$ 2,657,000	$ 2,707,000
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	5,100,000		5,100,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	2,600,000		2,600,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,800,000		1,800,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,700,000		1,700,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,400,000		$ 1,400,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			10 years
Goodwill, Acquired During Period	$ 0		$ 0