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Note 7 - Components of Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2022
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 June 30, 2021 |  | $ | 8,089 |  |  | $ | (10,147 | ) |  | $ | (2,058 | )
Unrealized holding loss on available for sale securities, net of tax of ($905) |  |  | (3,403 | ) |  |  | - |  |  |  | (3,403 | )
Balance at September 30, 2021 |  | $ | 4,686 |  |  | $ | (10,147 | ) |  | $ | (5,461 | )
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 | )
|  | Net Unrealized Gain (Loss) on Securities |  |  | Adjustments Related to Pension Benefits |  |  | Accumulated Other Comprehensive Income (Loss) |
Balance at December 31, 2020 |  | $ | 13,167 |  |  | $ | (10,147 | ) |  | $ | 3,020 |
Unrealized holding loss on available for sale securities, net of tax of ($2,254) |  |  | (8,477 | ) |  |  | - |  |  |  | (8,477 | )
Reclassification adjustment, net of tax of ($1) |  |  | (4 | ) |  |  | - |  |  |  | (4 | )
Balance at September 30, 2021 |  | $ | 4,686 |  |  | $ | (10,147 | ) |  | $ | (5,461 | )
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 | )

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