Note 19 - Changes in Accumulated Other Comprehensive Income by Component (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Unrealized
	Net Gain (Loss)			Retiree
	on Interest			Health
	Rate			Benefit
	Swap			Obligation			Total
Balance at December 31, 2022	$	6,115		$	3,013		$	9,128
Other comprehensive gain before reclassifications		607			411			1,018
Amounts reclassified from accumulated other comprehensive income: (1)		(3,391	)		(399	)		(3,790	)
Balance at December 31, 2023	$	3,331		$	3,025		$	6,356
(1) Amounts reclassified from accumulated other comprehensive income:
Amortization of Other Postretirement Benefit items:
Actuarial gains (a)	$	(539	)
Tax expense		140
Reclassification net of tax	$	(399	)
Realized gains on interest rate swaps reclassified to interest expense	$	(4,583	)
Tax expense		1,192
Reclassification net of tax	$	(3,391	)

	Unrealized
	Net Loss			Retiree
	on Interest			Health
	Rate			Benefit
	Swap			Obligation			Total
Balance at December 31, 2021	$	(3,524	)	$	2,471		$	(1,053	)
Other comprehensive gain before reclassifications		8,587			838			9,425
Amounts reclassified from accumulated other comprehensive income: (1)		1,052			(296	)		756
Balance at December 31, 2022	$	6,115		$	3,013		$	9,128
(1) Amounts reclassified from accumulated other comprehensive income:
Amortization of Other Postretirement Benefit items:
Actuarial gains (a)	$	(400	)
Tax expense		104
Reclassification net of tax	$	(296	)
Realized losses on interest rate swaps reclassified to interest expense	$	1,421
Tax expense		(369	)
Reclassification net of tax	$	1,052