Note 5 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 28, 2024	Dec. 30, 2023
Property and Equipment	$ 178,889	$ 175,402
Accumulated depreciation and amortization	(125,901)	(125,856)
Total property and equipment, net	52,988	49,546
UNITED STATES
Total property and equipment, net	26,578	29,467
TAIWAN
Total property and equipment, net	11,234	10,222
PHILIPPINES
Total property and equipment, net	6,086	4,602
CHINA
Total property and equipment, net	2,504	2,778
Other [Member]
Total property and equipment, net	6,586	2,477
Foreign Countries [Member]
Total property and equipment, net	26,410	20,079
Production Equipment and Software [Member]
Property and Equipment	161,525	159,950
Leasehold Improvements [Member]
Property and Equipment	15,387	13,519
Office Equipment [Member]
Property and Equipment	$ 1,977	$ 1,933