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Note 4 - Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |
|  | March 31, |
|  | 2023 |  |  | 2022 |
Numerator: |  |  |  |  |  |  |  |
Net earnings |  | $ | 14,572 |  |  | $ | 5,064 |
Less dividends declared: |  |  |  |  |  |  |  |
Class A |  |  | 128 |  |  |  | 129 |
Class B |  |  | 747 |  |  |  | 727 |
Undistributed earnings |  | $ | 13,697 |  |  | $ | 4,208 |
Undistributed earnings allocation - basic and diluted: |  |  |  |  |  |  |  |
Class A undistributed earnings |  | $ | 2,203 |  |  | $ | 692 |
Class B undistributed earnings |  |  | 11,494 |  |  |  | 3,516 |
Total undistributed earnings |  | $ | 13,697 |  |  | $ | 4,208 |
Net earnings allocation - basic and diluted: |  |  |  |  |  |  |  |
Class A net earnings |  | $ | 2,331 |  |  | $ | 821 |
Class B net earnings |  |  | 12,241 |  |  |  | 4,243 |
Net earnings |  | $ | 14,572 |  |  | $ | 5,064 |
Denominator: |  |  |  |  |  |  |  |
Weighted-average shares outstanding: |  |  |  |  |  |  |  |
Class A - basic and diluted |  |  | 2,142 |  |  |  | 2,145 |
Class B - basic and diluted |  |  | 10,639 |  |  |  | 10,374 |
Net earnings per share: |  |  |  |  |  |  |  |
Class A - basic and diluted |  | $ | 1.09 |  |  | $ | 0.38 |
Class B - basic and diluted |  | $ | 1.15 |  |  | $ | 0.41 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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