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Note 13 - Stock Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Nonvested Restricted Stock Shares Activity [Table Text Block] |
Non-vested Shares |  | Shares |  |  | Weighted Average Grant Date Fair Value |
Non-vested at January 1, 2020 |  |  | 30,205 |  |  | $ | 35.63 |
Granted |  |  | 13,243 |  |  |  | 44.30 |
Vested |  |  | (6,400 | ) |  |  | 27.50 |
Forfeited |  |  | (220 | ) |  |  | 43.65 |
Non-vested at December 31, 2020 |  |  | 36,828 |  |  | $ | 40.11 |
Non-vested at January 1, 2021 |  |  | 36,828 |  |  | $ | 40.11 |
Granted |  |  | 21,255 |  |  |  | 41.42 |
Vested |  |  | (13,493 | ) |  |  | 34.84 |
Forfeited |  |  | (355 | ) |  |  | 41.50 |
Non-vested at December 31, 2021 |  |  | 44,235 |  |  | $ | 42.33 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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