Note 6 - Restructuring - Activity Related to Restructuring Plans (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 27, 2025	Sep. 28, 2024
Accrued Restructuring		$ 4,869	$ 6,618
Restructuring		2,458	11,182
Costs paid or otherwise settled		(4,907)	(5,106)
Accrued Restructuring		2,420	12,694
Employee Severance [Member]
Accrued Restructuring		1,905	1,490
Restructuring		2,418	11,851
Costs paid or otherwise settled		(3,597)	(4,012)
Accrued Restructuring		726	9,329
Lease Termination and Fixed Assets [Member]
Accrued Restructuring		2,964	4,508
Restructuring		40	(49)
Costs paid or otherwise settled		(1,310)	(1,094)
Accrued Restructuring		1,694	3,365
Other Restructuring [Member]
Accrued Restructuring	[1]	0	620
Restructuring	[1]	0	(620)
Costs paid or otherwise settled	[1]	0	0
Accrued Restructuring	[1]	$ 0	$ 0

[1] Includes termination fees on the cancellation of certain contracts