Note 12 - Leases - Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 25, 2021
Operating cash flows from operating leases	$ 6,756	$ 6,716	$ 7,628
Operating cash flows from finance leases	1	1	1
Financing cash flows from finance leases	52	167	186
Leased assets obtained in exchange for new finance lease liabilities	0	0	54
Leased assets obtained in exchange for new operating lease liabilities	1,415	2,874	3,866
MCT Worldwide, LLC [Member]
Financing lease assets acquired in MCT acquisition	19	0	0
Operating lease assets acquired in MCT acquisition	$ 130	$ 0	$ 0