Note 7 - Business Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 30, 2023	Oct. 02, 2023	Jan. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Goodwill	$ 241,658			$ 213,539	$ 219,791
MCT Worldwide, LLC [Member]
Current assets, including cash received			$ 9,505
Property, plant and equipment			197
Other assets			356
Intangible assets			12,000
Goodwill			8,755
Total assets acquired			30,813
Liabilities assumed			(4,024)
Net assets acquired			$ 26,789
Equiptest Engineering Pte Ltd. (“EQT”) [Member]
Current assets, including cash received		$ 10,135
Property, plant and equipment		538
Intangible assets		34,500
Goodwill		15,377
Total assets acquired		60,550
Liabilities assumed		(10,203)
Net assets acquired		$ 50,347