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Note 8 - Components of Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 30, 2020
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 Income (Loss) |
Balance at March 31, 2019 |  | $ | (528 | ) |  | $ | (7,013 | ) |  | $ | (7,541 | )
Unrealized holding gain on available for sale securities, net of tax of $795 |  |  | 2,991 |  |  |  | --- |  |  |  | 2,991 |
Reclassification adjustment, net of tax of ($2) |  |  | (6 | ) |  |  | --- |  |  |  | (6 | )
Balance at June 30, 201 9 |  | $ | 2,457 |  |  | $ | (7,013 | ) |  | $ | (4,556 | )
Balance at March 31, 2020 |  | $ | 3,930 |  |  | $ | (8,582 | ) |  | $ | (4,652 | )
Unrealized holding gain on available for sale securities net of tax of $1,498 |  |  | 5,637 |  |  |  | --- |  |  |  | 5,637 |
Reclassification adjustment, net of tax of ($13) |  |  | (49 | ) |  |  | --- |  |  |  | (49 | )
Balance at June 30, 2020 |  | $ | 9,518 |  |  | $ | (8,582 | ) |  | $ | 936 |
|  | Net Unrealized Gain (Loss) on Securities |  |  | Adjustments Related to Pension Benefits |  |  | Accumulated Other Comprehensive Income (Loss) |
Balance at December 31, 201 8 |  | $ | (5,072 | ) |  | $ | (7,013 | ) |  | $ | (12,085 | )
Unrealized holding gain on available for sale securities, net of tax of $2,003 |  |  | 7,545 |  |  |  | --- |  |  |  | 7,545 |
Reclassification adjustment, net of tax of ($4) |  |  | (16 | ) |  |  | --- |  |  |  | (16 | )
Balance at June 30, 201 9 |  | $ | 2,457 |  |  | $ | (7,013 | ) |  | $ | (4,556 | )
Balance at December 31, 201 9 |  | $ | 76 |  |  | $ | (8,582 | ) |  | $ | (8,506 | )
Unrealized holding gain on available for sale securities net of tax of $2,526 |  |  | 9,507 |  |  |  | --- |  |  |  | 9,507 |
Reclassification adjustment, net of tax of ($17) |  |  | (65 | ) |  |  | --- |  |  |  | (65 | )
Balance at June 3 0, 2020 |  | $ | 9,518 |  |  | $ | (8,582 | ) |  | $ | 936 |

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