Annual report pursuant to Section 13 and 15(d)

Note 19 - Changes in Accumulated Other Comprehensive Income (Loss) by Component - Changes to Accumulated Other Comprehensive Income (Loss) by Component (Details)

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Note 19 - Changes in Accumulated Other Comprehensive Income (Loss) by Component - Changes to Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Balance $ 9,128 [1] $ (1,053)
Other comprehensive gain before reclassifications 1,018 9,425
Amounts reclassified from accumulated other comprehensive income: (1) (3,790) 756
Balance 6,356 9,128 [1]
Actuarial gains (a) (539) (400)
Tax expense 140 104
Reclassification net of tax (399) (296)
Realized gains on interest rate swaps reclassified to interest expense (4,583) 1,421
Tax expense 1,192 369
Reclassification net of tax (3,391) 1,052
Tax expense (1,192) (369)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]    
Balance 6,115 [1] (3,524)
Other comprehensive gain before reclassifications 607 8,587
Amounts reclassified from accumulated other comprehensive income: (1) (3,391) 1,052 [1]
Balance 3,331 6,115 [1]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]    
Balance 3,013 [1] 2,471
Other comprehensive gain before reclassifications 411 838
Amounts reclassified from accumulated other comprehensive income: (1) (399) (296)
Balance $ 3,025 $ 3,013 [1]
[1] These components are included in the computation of benefit plan costs in Note 12.