Note 6 - Components of Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

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

	Net Unrealized Loss on Securities			Adjustments Related to Pension Benefits			Accumulated Other Comprehensive Loss
Balance at June 30, 2022	$	(55,865	)	$	(6,912	)	$	(62,777	)
Unrealized holding loss on available for sale securities, net of tax of ($7,822)		(29,424	)		-			(29,424	)
Balance at September 30, 2022	$	(85,289	)	$	(6,912	)	$	(92,201	)
Balance at June 30, 2023	$	(71,898	)	$	(2,345	)	$	(74,243	)
Unrealized holding loss on available for sale securities, net of tax of ($4,099)		(15,421	)		-			(15,421	)
Balance at September 30, 2023	$	(87,319	)	$	(2,345	)	$	(89,664	)

	Net Unrealized Gain (Loss) on Securities			Adjustments Related to Pension Benefits			Accumulated Other Comprehensive Loss
Balance at December 31, 2021	$	2,854		$	(6,912	)	$	(4,058	)
Unrealized holding loss on available for sale securities, net of tax of ($23,431)		(88,143	)		-			(88,143	)
Balance at September 30, 2022	$	(85,289	)	$	(6,912	)	$	(92,201	)
Balance at December 31, 2022	$	(81,421	)	$	(2,345	)	$	(83,766	)
Unrealized holding loss on available for sale securities, net of tax of ($2,268)		(8,530	)		-			(8,530	)
Reclassification adjustment, net of tax of $700		2,632			-			2,632
Balance at September 30, 2023	$	(87,319	)	$	(2,345	)	$	(89,664	)