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Note 17 - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Tables) | 6 Months Ended
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Jun. 30, 2022
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized |  |  |  |  |  |  |  |  |
|  | Net Gain (Loss) |  |  | Retiree |  |  |  |  |
|  | on Interest |  |  | Health |  |  |  |  |
|  | Rate |  |  | Benefit |  |  |  |  |
|  | Swap |  |  | Obligation |  |  | Total |
Balance at December 31, 2021 |  | $ | (3,524 | ) |  | $ | 2,471 |  |  | $ | (1,053 | )
Other comprehensive gain before reclassifications |  |  | 4,443 |  |  |  | — |  |  |  | 4,443 |
Amounts reclassified from accumulated other comprehensive income (loss): (1) |  |  | 1,329 |  |  |  | (82 | ) |  |  | 1,247 |
Balance at June 30, 2022 |  | $ | 2,248 |  |  | $ | 2,389 |  |  | $ | 4,637 |
(1) Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Other Postretirement Benefit items: |  |  |  |  |  |  |  |  |  |  |  |
Actuarial gains |  | $ | (110 | ) |  |  |  |  |  |  |  |
Tax expense |  |  | 28 |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (82 | ) |  |  |  |  |  |  |  |
Realized losses on interest rate swaps reclassified to interest expense |  | $ | 1,796 |  |  |  |  |  |  |  |  |
Tax benefit |  |  | (467 | ) |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | 1,329 |  |  |  |  |  |  |  |  |
|  | Unrealized |  |  |  |  |  |  |  |  |
|  | Net Loss |  |  | Retiree |  |  |  |  |
|  | on Interest |  |  | Health |  |  |  |  |
|  | Rate |  |  | Benefit |  |  |  |  |
|  | Swap |  |  | Obligation |  |  | Total |
Balance at December 31, 2020 |  | $ | (7,608 | ) |  | $ | 2,113 |  |  | $ | (5,495 | )
Other comprehensive loss before reclassifications |  |  | (21 | ) |  |  | — |  |  |  | (21 | )
Amounts reclassified from accumulated other comprehensive income (loss): (1) |  |  | 1,560 |  |  |  | (115 | ) |  |  | 1,445 |
Balance at June 30, 2021 |  | $ | (6,069 | ) |  | $ | 1,998 |  |  | $ | (4,071 | )
(1) Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Other Postretirement Benefit items: |  |  |  |  |  |  |  |  |  |  |  |
Actuarial gains |  | $ | (156 | ) |  |  |  |  |  |  |  |
Tax expense |  |  | 41 |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (115 | ) |  |  |  |  |  |  |  |
Realized losses on interest rate swaps reclassified to interest expense |  | $ | 2,108 |  |  |  |  |  |  |  |  |
Tax benefit |  |  | (548 | ) |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | 1,560 |  |  |  |  |  |  |  |  |

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