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Note 12 - Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Net Funded Status [Table Text Block] |
|  | December 31, |
|  | 2021 |  |  | 2020 |
(Amounts in thousands) |  |  |  |  |  |  |  |
Beginning balance |  | $ | 12,579 |  |  | $ | 11,312 |
Effect of curtailment |  |  | 289 |  |  |  | — |
Service cost |  |  | 352 |  |  |  | 310 |
Interest cost |  |  | 315 |  |  |  | 355 |
Actuarial (gain) loss |  |  | (1,472 | ) |  |  | 1,217 |
Benefits paid |  |  | (605 | ) |  |  | (615 | )
Ending balance |  | $ | 11,458 |  |  | $ | 12,579 |
Schedule of Net Benefit Costs [Table Text Block] |
|  | Year Ended December 31, |  |
|  | 2021 |  |  | 2020 |  |  | 2019 |  | Income Statement Location
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 352 |  |  | $ | 310 |  |  | $ | 320 |  | Salaries and employee benefits
Interest cost |  |  | 315 |  |  |  | 355 |  |  |  | 404 |  | Other expense
Effect of curtailment |  |  | 289 |  |  |  | — |  |  |  | — |  | Salaries and employee benefits
Amortization of prior service cost |  |  | 124 |  |  |  | 201 |  |  |  | 257 |  | Other expense
Amortization of losses |  |  | 264 |  |  |  | 186 |  |  |  | 20 |  | Other expense
Net periodic cost |  | $ | 1,344 |  |  | $ | 1,052 |  |  | $ | 1,001 |  |
Assumed discount rate |  |  | 2.88 | % |  |  | 2.53 | % |  |  | 3.10 | % |
Schedule of Expected Benefit Payments [Table Text Block] |
(Amounts in thousands) |  |  |  |
2022 |  | $ | 685 |
2023 |  |  | 684 |
2024 |  |  | 734 |
2025 |  |  | 729 |
2026 |  |  | 831 |
2027 through 2031 |  |  | 3,669 |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] |
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Pre-tax compensation expense |  | $ | 1,282 |  |  | $ | 1,643 |  |  | $ | 1,481 |
Excess tax (benefit) expense |  |  | (633 | ) |  |  | 202 |  |  |  | (340 | )
Share-based Payment Arrangement, Option, Activity [Table Text Block] |
(Amounts in thousands, except share and per share data) |  | Option Shares |  |  | Weighted Average Exercise Price Per Share |  |  | Weighted Average Remaining Contractual Term (Years) |  |  | Aggregate Intrinsic Value |
Outstanding, January 1, 2021 |  |  | 114,279 |  |  | $ | 19.56 |  |  |  |  |  |  |  |  |
Granted |  |  | 131,198 |  |  |  | 33.00 |  |  |  |  |  |  |  |  |
Exercised |  |  | (39,995 | ) |  |  | 13.44 |  |  |  |  |  |  |  |  |
Canceled/Expired |  |  | (604 | ) |  |  | 24.72 |  |  |  |  |  |  |  |  |
Outstanding, December 31, 2021 |  |  | 204,878 |  |  | $ | 29.35 |  |  |  | 4.99 |  |  | $ | 834 |
Exercisable, December 31, 2021 |  |  | 73,680 |  |  | $ | 22.84 |  |  |  | 5.42 |  |  | $ | 779 |
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] |
|  | Shares |  |  | Weighted Average Grant-Date Fair Value |
Nonvested, January 1, 2021 |  |  | 84,915 |  |  | $ | 25.31 |
Granted |  |  | — |  |  |  | — |
Vested |  |  | (37,497 | ) |  |  | 26.93 |
Canceled |  |  | (1,762 | ) |  |  | 23.85 |
Nonvested, December 31, 2021 |  |  | 45,656 |  |  | $ | 24.03 |

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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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