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Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets (Details Textual) $ in Thousands, SDG in Millions, $ in Millions |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 02, 2023 USD ($) | Oct. 02, 2023 SGD ($) | Jan. 31, 2024 USD ($) | Jan. 31, 2024 SGD ($) | Sep. 28, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 28, 2024 USD ($) | Sep. 28, 2024 SGD ($) | Sep. 30, 2023 USD ($) | Sep. 28, 2024 SDG | Dec. 30, 2023 USD ($) | [1] | Oct. 02, 2023 SDG
Other Accrued Liabilities, Noncurrent |  |  |  |  | $ 7,188 |  | $ 7,188 |  |  |  | $ 8,262 |
Amortization of Intangible Assets |  |  |  |  | 9,791 | $ 8,857 | 29,334 |  | $ 26,617 |  |  |
Equiptest Engineering Pte Ltd. (“EQT”) [Member] |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross | $ 48,300 | $ 66.0 |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred | 49,900 | $ 68.3 |  |  |  |  | 50,300 | $ 68.8 |  |  |  |
Cash Acquired from Acquisition |  |  | $ 600 | $ 0.8 |  |  |  |  |  |  |  |
Equiptest Engineering Pte Ltd. (“EQT”) [Member] | EQT Retention Sum Liability [Member] |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Retention Sum Liability for Potential Adjustments | $ 1,600 |  |  |  |  |  |  |  |  |  |  | SDG 2.2
Other Accrued Liabilities, Noncurrent |  |  |  |  | $ 800 |  | $ 800 |  |  | SDG 1.1 |  |
[1] | Derived from December 30, 2023 audited financial statements

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 + Details
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