Note 4 - Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2025

Table Text Block [Abstract]

Schedule of Net Periodic Pension Cost

Net periodic pension cost (benefit) for the plans consisted of the following for the three and nine months ended September 30, 2025 and 2024 (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2025			2024			2025			2024
Service cost	$	1,068		$	914		$	3,204		$	2,744
Interest cost		2,094			2,076			6,282			6,227
Expected return on plan assets		(3,251	)		(3,136	)		(9,753	)		(9,408	)
Amortization of prior service cost		20			67			60			199
Amortization of net loss		326			15			978			46
Net periodic pension cost (benefit)	$	257		$	(64	)	$	771		$	(192	)