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

3 Months Ended

Mar. 31, 2023

Notes Tables

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

	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 ($8,992)		(33,826	)		-			(33,826	)
Balance at March 31, 2022	$	(30,972	)	$	(6,912	)	$	(37,884	)
Balance at December 31, 2022	$	(81,421	)	$	(2,345	)	$	(83,766	)
Unrealized holding gain on available for sale securities, net of tax of $3,121		11,738			-			11,738
Reclassification adjustment, net of tax of ($3)		(9	)		-			(9	)
Balance at March 31, 2023	$	(69,692	)	$	(2,345	)	$	(72,037	)