Note 7 - Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 26, 2022

Notes Tables

Schedule of Derivative Instruments [Table Text Block]

		Contract Amount		Contract Amount
Currency	Contract Position	(Local Currency)		(U.S. Dollars)
Euro	Buy		35,115	$	38,700
Swiss Franc	Buy		16,747		18,000
Japanese Yen	Buy		120,920		1,000
				$	57,700

Derivative Instruments, Gain (Loss) [Table Text Block]

		Three months ended
Derivatives not designated	Location of loss	March 26,			March 27,
as hedging instruments	recognized on derivatives	2022			2021
Foreign exchange forward contracts	Foreign transaction loss	$	(1,410	)	$	(1,515	)