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Note 15 - Accumulated Other Comprehensive Income (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Unrealized Gains (Losses) on Available for-Sale Securities |  |  | Employee Benefit Plans |  |  | Total |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Balance January 1, 2020 |  | $ | 866 |  |  | $ | (2,372 | ) |  | $ | (1,506 | )
Other comprehensive (loss) income before reclassifications |  |  | 544 |  |  |  | (961 | ) |  |  | (417 | )
Reclassified from AOCI |  |  | (304 | ) |  |  | 304 |  |  |  | — |
Other comprehensive (loss) income, net |  |  | 240 |  |  |  | (657 | ) |  |  | (417 | )
Balance December 31, 2020 |  | $ | 1,106 |  |  | $ | (3,029 | ) |  | $ | (1,923 | )
Balance January 1, 2021 |  | $ | 1,106 |  |  | $ | (3,029 | ) |  | $ | (1,923 | )
Other comprehensive income (loss) before reclassifications |  |  | (1,091 | ) |  |  | 1,160 |  |  |  | 69 |
Reclassified from AOCI |  |  | — |  |  |  | 308 |  |  |  | 308 |
Other comprehensive income (loss), net |  |  | (1,091 | ) |  |  | 1,468 |  |  |  | 377 |
Balance December 31, 2021 |  | $ | 15 |  |  | $ | (1,561 | ) |  | $ | (1,546 | )
Balance January 1, 2022 |  | $ | 15 |  |  | $ | (1,561 | ) |  | $ | (1,546 | )
Other comprehensive (loss) income before reclassifications |  |  | (15,636 | ) |  |  | 1,357 |  |  |  | (14,279 | )
Reclassified from AOCI |  |  | — |  |  |  | 106 |  |  |  | 106 |
Other comprehensive (loss) income, net |  |  | (15,636 | ) |  |  | 1,463 |  |  |  | (14,173 | )
Balance December 31, 2022 |  | $ | (15,621 | ) |  | $ | (98 | ) |  | $ | (15,719 | )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
|  | Year Ended December 31, |  | Income Statement
(Amounts in thousands) |  | 2022 |  |  | 2021 |  |  | 2020 |  | Line Item Affected
Available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |
(Losses) gains recognized |  | $ | — |  |  | $ | — |  |  | $ | (385 | ) | Net loss on sale of securities
Reclassified out of AOCI, before tax |  |  | — |  |  |  | — |  |  |  | (385 | ) | Income before income taxes
Income tax benefit |  |  | — |  |  |  | — |  |  |  | 81 |  | Income tax expense
Reclassified out of AOCI, net of tax |  |  | — |  |  |  | — |  |  |  | (304 | ) | Net income
Employee benefit plans |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service cost |  |  | — |  |  |  | 124 |  |  |  | 201 |  | Other operating expense
Amortization of net actuarial loss |  |  | 135 |  |  |  | 264 |  |  |  | 185 |  | Other operating expense
Reclassified out of AOCI, before tax |  |  | 135 |  |  |  | 388 |  |  |  | 386 |  | Income before income taxes
Income tax expense |  |  | (29 | ) |  |  | (80 | ) |  |  | (82 | ) | Income tax expense
Reclassified out of AOCI, net of tax |  |  | 106 |  |  |  | 308 |  |  |  | 304 |  | Net income
Total reclassified out of AOCI, net of tax |  | $ | 106 |  |  | $ | 308 |  |  | $ | — |  | Net income

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