Note 10 (Details Textual)	3 Months Ended		6 Months Ended
	Mar. 27, 2021 USD ($)	Mar. 28, 2020 USD ($)	Mar. 27, 2021 USD ($)	Mar. 28, 2020 USD ($)
Number of Reportable Segments			3
Amortization of Intangible Assets, Total	$ 777,000	$ 833,000	$ 1,457,000	$ 1,676,000
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year	2,500,000		2,500,000
Finite-Lived Intangible Asset, Expected Amortization, Year One	2,300,000		2,300,000
Finite-Lived Intangible Asset, Expected Amortization, Year Two	2,300,000		2,300,000
Finite-Lived Intangible Asset, Expected Amortization, Year Three	2,000,000		2,000,000
Finite-Lived Intangible Asset, Expected Amortization, Year Four	$ 1,400,000		$ 1,400,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)			10 years 10 months 24 days
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			2 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			20 years