Note 4 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 02, 2022	Jan. 01, 2022
Property, Plant and Equipment, Net	$ 39,626	$ 38,094
UNITED STATES
Property, Plant and Equipment, Net	25,240	26,509
TAIWAN
Property, Plant and Equipment, Net	8,727	6,555
PHILIPPINES
Property, Plant and Equipment, Net	3,098	2,498
CHINA
Property, Plant and Equipment, Net	1,546	1,643
Other [Member]
Property, Plant and Equipment, Net	1,015	889
Foreign Countries [Member]
Property, Plant and Equipment, Net	$ 14,386	$ 11,585

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 360
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Name:	us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant