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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, 2023
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, 2022 |  | $ | 6,115 |  |  | $ | 3,013 |  |  | $ | 9,128 |
Other comprehensive gain before reclassifications |  |  | 1,401 |  |  |  | — |  |  |  | 1,401 |
Amounts reclassified from accumulated other comprehensive income (loss): (1) |  |  | (1,516 | ) |  |  | (107 | ) |  |  | (1,623 | )
Balance at June 30, 2023 |  | $ | 6,000 |  |  | $ | 2,906 |  |  | $ | 8,906 |
(1) Amounts reclassified from accumulated other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |
Amortization of Other Postretirement Benefit items: |  |  |  |  |  |  |  |  |  |  |  |
Actuarial gains |  | $ | (144 | ) |  |  |  |  |  |  |  |
Tax expense |  |  | 37 |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (107 | ) |  |  |  |  |  |  |  |
Realized gains on interest rate swaps reclassified to interest expense |  | $ | (2,048 | ) |  |  |  |  |  |  |  |
Tax expense |  |  | 532 |  |  |  |  |  |  |  |  |
Reclassification net of tax |  | $ | (1,516 | ) |  |  |  |  |  |  |  |
|  | 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 |  |  |  |  |  |  |  |  |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481694/830-30-45-20 + Details
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