Note 2 - Business Acquisition, Goodwill and Purchased Intangible Assets (Details Textual) $ in Thousands, $ in Millions			1 Months Ended		3 Months Ended
	Oct. 02, 2023 USD ($)	Oct. 02, 2023 SGD ($)	Jan. 31, 2024 USD ($)	Jan. 31, 2024 SGD ($)	Mar. 30, 2024 USD ($)	Mar. 30, 2024 SGD ($)	Apr. 01, 2023 USD ($)	Mar. 30, 2024 SGD ($)	Dec. 30, 2023 USD ($)	[1]	Oct. 02, 2023 SGD ($)
Other Accrued Liabilities, Noncurrent					$ 8,165				$ 8,262
Amortization of Intangible Assets					9,795		$ 8,754
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										$ 2.2
Other Accrued Liabilities, Noncurrent					$ 1,300			$ 1.7

[1] Derived from December 30, 2023 audited financial statements