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Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Year Ended December 31, |
|  | 2019 |  |  | 2018 |
Numerator: |  |  |  |  |  |  |  |
Net (loss) earnings |  | $ | (8,743 | ) |  | $ | 20,709 |
Less dividends declared: |  |  |  |  |  |  |  |
Class A |  |  | 518 |  |  |  | 522 |
Class B |  |  | 2,834 |  |  |  | 2,796 |
Undistributed (loss) earnings |  | $ | (12,095 | ) |  | $ | 17,391 |
Undistributed (loss) earnings allocation - basic and diluted: |  |  |  |  |  |  |  |
Class A undistributed (loss) earnings |  | $ | (2,049 | ) |  | $ | 2,999 |
Class B undistributed (loss) earnings |  |  | (10,046 | ) |  |  | 14,392 |
Total undistributed (loss) earnings |  | $ | (12,095 | ) |  | $ | 17,391 |
Net (loss) earnings allocation - basic and diluted: |  |  |  |  |  |  |  |
Class A net (loss) earnings |  | $ | (1,531 | ) |  | $ | 3,521 |
Class B net (loss) earnings |  |  | (7,212 | ) |  |  | 17,188 |
Net (loss) earnings |  | $ | (8,743 | ) |  | $ | 20,709 |
Denominator: |  |  |  |  |  |  |  |
Weighted average shares outstanding: |  |  |  |  |  |  |  |
Class A - basic and diluted |  |  | 2,167 |  |  |  | 2,175 |
Class B - basic and diluted |  |  | 10,117 |  |  |  | 9,939 |
Net (loss) earnings per share: |  |  |  |  |  |  |  |
Class A - basic and diluted |  | $ | (0.71 | ) |  | $ | 1.62 |
Class B - basic and diluted |  | $ | (0.71 | ) |  | $ | 1.73 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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