Note 15 - Commitments and Contingencies - Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Oct. 03, 2020	Sep. 28, 2019
Deferred Tax Assets [Member]
Derivative assets (liabilities)	$ 442	$ 0
Deferred Tax Liabilities [Member]
Derivative assets (liabilities)	0	324
Accounts Payable and Accrued Liabilities [Member]
Derivative assets (liabilities)	(108)	0
Other Noncurrent Liabilities [Member]
Derivative assets (liabilities)	(1,656)	(1,293)
Accumulated Other Comprehensive Income (Loss) [Member]
Derivative assets (liabilities)	$ (1,322)	$ (969)