Note 15 - Leases (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Operating Lease, Expense	$ 361,000	$ 337,000	$ 721,000	$ 664,000
Operating Lease, Weighted Average Remaining Lease Term (Year)	2 years		2 years
Operating Lease, Weighted Average Discount Rate, Percent	4.20%		4.20%