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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted short-term marketable securities	$ 1,079,000	$ 1,359,000
Other-than-temporary impairment loss	0	0
Equity investments without readily determinable fair value	4,000,000	4,000,000
Recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value disclosure	35,776,000	68,715,000
Financial liabilities fair value disclosure	536,000	2,971,000
Level 3 | Recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value disclosure	0	0
Financial liabilities fair value disclosure	$ 0	$ 0

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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- Definition

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of investment in equity security without readily determinable fair value.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI).

+ References

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