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Note 4 - Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings |  | $ | 5,734 |  |  | $ | 7,475 |  |  | $ | 16,813 |  |  | $ | 9,244 |
Less dividends declared: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A |  |  | 129 |  |  |  | 129 |  |  |  | 386 |  |  |  | 388 |
Class B |  |  | 719 |  |  |  | 717 |  |  |  | 2,149 |  |  |  | 2,133 |
Undistributed earnings |  | $ | 4,886 |  |  | $ | 6,629 |  |  | $ | 14,278 |  |  | $ | 6,723 |
Undistributed earnings allocation - basic and diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A undistributed earnings |  | $ | 811 |  |  | $ | 1,104 |  |  | $ | 2,375 |  |  | $ | 1,124 |
Class B undistributed earnings |  |  | 4,075 |  |  |  | 5,525 |  |  |  | 11,903 |  |  |  | 5,599 |
Total undistributed earnings |  | $ | 4,886 |  |  | $ | 6,629 |  |  | $ | 14,278 |  |  | $ | 6,723 |
Net earnings allocation - basic and diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A net earnings |  | $ | 940 |  |  | $ | 1,233 |  |  | $ | 2,761 |  |  | $ | 1,512 |
Class B net earnings |  |  | 4,794 |  |  |  | 6,242 |  |  |  | 14,052 |  |  |  | 7,732 |
Net earnings |  | $ | 5,734 |  |  | $ | 7,475 |  |  | $ | 16,813 |  |  | $ | 9,244 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A - basic and diluted |  |  | 2,145 |  |  |  | 2,145 |  |  |  | 2,145 |  |  |  | 2,145 |
Class B - basic and diluted |  |  | 10,269 |  |  |  | 10,223 |  |  |  | 10,237 |  |  |  | 10,176 |
Net earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A - basic and diluted |  | $ | 0.44 |  |  | $ | 0.57 |  |  | $ | 1.29 |  |  | $ | 0.70 |
Class B - basic and diluted |  | $ | 0.47 |  |  | $ | 0.61 |  |  | $ | 1.37 |  |  | $ | 0.76 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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