FAIR VALUE MEASUREMENTS - Other Income From Available For Sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 30, 2022	Mar. 31, 2021
Available-for-sale securities
Unrealized loss on equity securities	$ (400)	$ (46)
Total	(289)	31
Available-for-sale Securities
Available-for-sale securities
Dividend income	77	74
Unrealized loss on equity securities	(400)	(46)
Total	$ (323)	$ 28

Amount of dividend income on nonoperating securities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration