Note 5 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 02, 2021
Property and Equipment	$ 147,999	$ 150,848
Accumulated depreciation and amortization	(109,905)	(111,182)
Property and Equipment, Net	38,094	39,666
Property, Plant and Equipment, Net	38,094	39,666
UNITED STATES
Property and Equipment, Net	26,509	29,440
Property, Plant and Equipment, Net	26,509	29,440
TAIWAN, PROVINCE OF CHINA
Property and Equipment, Net	6,555	5,171
Property, Plant and Equipment, Net	6,555	5,171
PHILIPPINES
Property and Equipment, Net	2,498	2,912
Property, Plant and Equipment, Net	2,498	2,912
CHINA
Property and Equipment, Net	1,643	1,537
Property, Plant and Equipment, Net	1,643	1,537
Other [Member]
Property and Equipment, Net	889	606
Property, Plant and Equipment, Net	889	606
Foreign Countries [Member]
Property and Equipment, Net	11,585	10,226
Property, Plant and Equipment, Net	11,585	10,226
Production Equipment and Software [Member]
Property and Equipment	133,039	135,774
Leasehold Improvements [Member]
Property and Equipment	12,960	12,913
Office Equipment [Member]
Property and Equipment	$ 2,000	$ 2,161

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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