Note 4 - Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs: (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

	Pension Benefits						Other Post-Employment Benefits
	Three Months Ended						Three Months Ended
	March 31,						March 31,
	2022			2021			2022			2021
Service Cost	$	302		$	279		$	—		$	—
Interest Cost		4,135			3,550			1,974			1,818
Expected Return on Plan Assets		(9,319	)		(10,542	)		—			—
Amortization of Prior Service Credits		—			—			(601	)		(601	)
Amortization of Actuarial Loss		758			1,367			879			1,629
Net Periodic Benefit (Credit) Cost	$	(4,124	)	$	(5,346	)	$	2,252		$	2,846