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Note 6 - Components of Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 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 March 31, 2022 |  | $ | (30,972 | ) |  | $ | (6,912 | ) |  | $ | (37,884 | )
Unrealized holding loss on available for sale securities, net of tax of ($6,617) |  |  | (24,893 | ) |  |  | - |  |  |  | (24,893 | )
Balance at June 30, 2022 |  | $ | (55,865 | ) |  | $ | (6,912 | ) |  | $ | (62,777 | )
Balance at March 31, 2023 |  | $ | (69,692 | ) |  | $ | (2,345 | ) |  | $ | (72,037 | )
Unrealized holding loss on available for sale securities, net of tax of ($1,289) |  |  | (4,848 | ) |  |  | - |  |  |  | (4,848 | )
Reclassification adjustment, net of tax of $702 |  |  | 2,642 |  |  |  | - |  |  |  | 2,642 |
Balance at June 30, 2023 |  | $ | (71,898 | ) |  | $ | (2,345 | ) |  | $ | (74,243 | )
|  | 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 ($15,609) |  |  | (58,719 | ) |  |  | - |  |  |  | (58,719 | )
Balance at June 30, 2022 |  | $ | (55,865 | ) |  | $ | (6,912 | ) |  | $ | (62,777 | )
Balance at December 31, 2022 |  | $ | (81,421 | ) |  | $ | (2,345 | ) |  | $ | (83,766 | )
Unrealized holding gain on available for sale securities, net of tax of $1,831 |  |  | 6,891 |  |  |  | - |  |  |  | 6,891 |
Reclassification adjustment, net of tax of $700 |  |  | 2,632 |  |  |  | - |  |  |  | 2,632 |
Balance at June 30, 2023 |  | $ | (71,898 | ) |  | $ | (2,345 | ) |  | $ | (74,243 | )

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