Note 7 - Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 25, 2021

Notes Tables

Schedule of Derivative Instruments [Table Text Block]

		Contract Amount		Contract Amount
Currency	Contract Position	(Local Currency)		(U.S. Dollars)
Euro	Buy		25,311	$	29,700
Swiss Franc	Buy		17,533		19,000
Japanese Yen	Buy		276,688		2,500
				$	51,200

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

Derivatives Not Designated as	Location of Loss	Three months ended					Nine months ended
Hedging	Recognized on	September 25,			September 28,		September 25,			September 28,
Instruments	Derivatives	2021			2020		2021			2020
Foreign exchange forward contracts	Foreign transaction loss	$	(934	)		n/a	$	(2,283	)		n/a