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Note 4 - Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings |  | $ | 5,573 |  |  | $ | 2,967 |  |  | $ | 1,769 |  |  | $ | 4,098 |
Less dividends declared: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A |  |  | 129 |  |  |  | 131 |  |  |  | 259 |  |  |  | 261 |
Class B |  |  | 707 |  |  |  | 704 |  |  |  | 1,416 |  |  |  | 1,412 |
Undistributed earnings |  | $ | 4,737 |  |  | $ | 2,132 |  |  | $ | 94 |  |  | $ | 2,425 |
Undistributed earnings allocation - basic and diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A undistributed earnings |  | $ | 794 |  |  | $ | 363 |  |  | $ | 15 |  |  | $ | 412 |
Class B undistributed earnings |  |  | 3,943 |  |  |  | 1,769 |  |  |  | 79 |  |  |  | 2,013 |
Total undistributed earnings |  | $ | 4,737 |  |  | $ | 2,132 |  |  | $ | 94 |  |  | $ | 2,425 |
Net earnings allocation - basic and diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A net earnings |  | $ | 923 |  |  | $ | 494 |  |  | $ | 274 |  |  | $ | 673 |
Class B net earnings |  |  | 4,650 |  |  |  | 2,473 |  |  |  | 1,495 |  |  |  | 3,425 |
Net earnings |  | $ | 5,573 |  |  | $ | 2,967 |  |  | $ | 1,769 |  |  | $ | 4,098 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A - basic and diluted |  |  | 2,145 |  |  |  | 2,175 |  |  |  | 2,145 |  |  |  | 2,175 |
Class B - basic and diluted |  |  | 10,178 |  |  |  | 10,112 |  |  |  | 10,151 |  |  |  | 10,100 |
Net earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class A - basic and diluted |  | $ | 0.43 |  |  | $ | 0.23 |  |  | $ | 0.13 |  |  | $ | 0.31 |
Class B - basic and diluted |  | $ | 0.46 |  |  | $ | 0.24 |  |  | $ | 0.15 |  |  | $ | 0.34 |

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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=6371337&loc=d3e3550-109257 + Details
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