Note 4 - Employee Benefit Plans (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2025 and 2024 (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2025			2024			2025			2024
Service cost	$	1,068		$	915		$	2,136		$	1,830
Interest cost		2,094			2,075			4,188			4,151
Expected return on plan assets		(3,251	)		(3,136	)		(6,502	)		(6,272	)
Amortization of prior service cost		20			66			40			132
Amortization of net loss		326			16			652			31
Net periodic pension cost (benefit)	$	257		$	(64	)	$	514		$	(128	)