Note 13 - Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Oct. 03, 2020	Sep. 28, 2019
Operating Lease, Right-of-Use Asset	$ 2,522	$ 0
Other Noncurrent Assets [Member]
Operating Lease, Right-of-Use Asset	2,522
Accrued Expenses, Current [Member]
Operating lease liabilities	1,230	0
Other Noncurrent Liabilities [Member]
Other liabilities	1,300	$ 0
Accrued Expenses Current and Other Noncurrent Liabilities [Member]
Total operating lease liabilities	$ 2,530