Note 3 - Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs: (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Pension Benefits												Other Post-Employment Benefits
	Three Months Ended						Six Months Ended						Three Months Ended						Six Months Ended
	June 30,						June 30,						June 30,						June 30,
	2022			2021			2022			2021			2022			2021			2022			2021
Service Cost	$	302		$	279		$	604		$	558		$	—		$	—		$	—		$	—
Interest Cost		4,134			3,554			8,269			7,104			1,975			1,819			3,949			3,637
Expected Return on Plan Assets		(9,319	)		(10,542	)		(18,638	)		(21,084	)		—			—			—			—
Amortization of Prior Service Credits		—			—			—			—			(602	)		(601	)		(1,203	)		(1,202	)
Amortization of Actuarial Loss		761			1,367			1,519			2,734			879			1,629			1,758			3,258
Settlement Loss Recognized		—			22			—			22			—			—			—			—
Net Periodic Benefit (Credit) Cost	$	(4,122	)	$	(5,320	)	$	(8,246	)	$	(10,666	)	$	2,252		$	2,847		$	4,504		$	5,693