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Note 12 - Net Income Per Share of Class A and Class B Common Stock (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Text Block] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Three Months Ended June 30, |  | 2013 |  |  | 2012 |
Basic EPS from Continuing Operations |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations applicable to common stockholders |  | $ | 22,734 |  |  | $ | 2,547 |  |  | $ | 17,261 |  |  | $ | 2,744 |
Distributed income applicable to common stockholders |  |  | (3,018 | ) |  |  | (338 | ) |  |  | (2,230 | ) |  |  | (354 | )
Basic undistributed income from continuing operations applicable to common stockholders |  | $ | 19,716 |  |  | $ | 2,209 |  |  | $ | 15,031 |  |  | $ | 2,390 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic income per share |  |  | 23,185 |  |  |  | 2,597 |  |  |  | 22,201 |  |  |  | 3,529 |
Basic income per share from continuing operations applicable to common stockholders |  | $ | 0.98 |  |  | $ | 0.98 |  |  | $ | 0.78 |  |  | $ | 0.78 |
Basic distributed income per share from continuing operations applicable to common stockholders |  |  | (0.13 | ) |  |  | (0.13 | ) |  |  | (0.10 | ) |  |  | (0.10 | )
Basic undistributed income per share from continuing operations applicable to common stockholders |  | $ | 0.85 |  |  | $ | 0.85 |  |  | $ | 0.68 |  |  | $ | 0.68 |
Three Months Ended June 30, |  | 2013 |  |  | 2012 |
Diluted EPS from Continuing Operations |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributed income applicable to common stockholders |  | $ | 3,018 |  |  | $ | 338 |  |  | $ | 2,230 |  |  | $ | 354 |
Reallocation of distributed income as a result of conversion of dilutive stock options |  |  | 5 |  |  |  | (5 | ) |  |  | 6 |  |  |  | (6 | )
Reallocation of distributed income due to conversion of Class B to Class A common shares outstanding |  |  | 333 |  |  |  | - |  |  |  | 348 |  |  |  | - |
Diluted distributed income applicable to common stockholders |  | $ | 3,356 |  |  | $ | 333 |  |  | $ | 2,584 |  |  | $ | 348 |
Undistributed income from continuing operations applicable to common stockholders |  | $ | 19,716 |  |  | $ | 2,209 |  |  | $ | 15,031 |  |  | $ | 2,390 |
Reallocation of undistributed income as a result of conversion of dilutive stock options |  |  | 30 |  |  |  | (30 | ) |  |  | 42 |  |  |  | (42 | )
Reallocation of undistributed income due to conversion of Class B to Class A |  |  | 2,179 |  |  |  | - |  |  |  | 2,348 |  |  |  | - |
Diluted undistributed income from continuing operations applicable to common stockholders |  | $ | 21,925 |  |  | $ | 2,179 |  |  | $ | 17,421 |  |  | $ | 2,348 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic income per share from continuing operations |  |  | 23,185 |  |  |  | 2,597 |  |  |  | 22,201 |  |  |  | 3,529 |
Weighted average number of shares from stock options |  |  | 352 |  |  |  | - |  |  |  | 455 |  |  |  | - |
Conversion of Class B to Class A common shares outstanding |  |  | 2,597 |  |  |  | - |  |  |  | 3,529 |  |  |  | - |
Weighted average number of shares outstanding used to calculate diluted income per share from continuing operations |  |  | 26,134 |  |  |  | 2,597 |  |  |  | 26,185 |  |  |  | 3,529 |
Diluted income per share from continuing operations applicable to common stockholders |  | $ | 0.97 |  |  | $ | 0.97 |  |  | $ | 0.76 |  |  | $ | 0.76 |
Diluted distributed income per share from continuing operations applicable to common stockholders |  |  | (0.13 | ) |  |  | (0.13 | ) |  |  | (0.10 | ) |  |  | (0.10 | )
Diluted undistributed income per share from continuing operations applicable to common stockholders |  | $ | 0.84 |  |  | $ | 0.84 |  |  | $ | 0.66 |  |  | $ | 0.66 |
Three Months Ended June 30, |  | 2013 |  |  | 2012 |
Diluted EPS |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Antidilutive Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable pursuant to stock options not included since they were antidilutive |  |  | 18 |  |  |  | - |  |  |  | 45 |  |  |  | - |
Six Months Ended June 30, |  | 2013 |  |  | 2012 |
Basic EPS from Continuing Operations |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income from continuing operations applicable to common stockholders |  | $ | 42,254 |  |  | $ | 4,909 |  |  | $ | 31,483 |  |  | $ | 5,156 |
Distributed income applicable to common stockholders |  |  | (3,007 | ) |  |  | (349 | ) |  |  | (3,779 | ) |  |  | (619 | )
Basic undistributed income from continuing operations applicable to common stockholders |  | $ | 39,247 |  |  | $ | 4,560 |  |  | $ | 27,704 |  |  | $ | 4,537 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic income per share |  |  | 23,052 |  |  |  | 2,678 |  |  |  | 22,221 |  |  |  | 3,639 |
Basic income per share from continuing operations applicable to common stockholders |  | $ | 1.83 |  |  | $ | 1.83 |  |  | $ | 1.42 |  |  | $ | 1.42 |
Basic distributed income per share from continuing operations applicable to common stockholders |  |  | (0.13 | ) |  |  | (0.13 | ) |  |  | (0.17 | ) |  |  | (0.17 | )
Basic undistributed income per share from continuing operations applicable to common stockholders |  | $ | 1.70 |  |  | $ | 1.70 |  |  | $ | 1.25 |  |  | $ | 1.25 |
Six Months Ended June 30, |  | 2013 |  |  | 2012 |
Diluted EPS from Continuing Operations |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distributed income applicable to common stockholders |  | $ | 3,007 |  |  | $ | 349 |  |  | $ | 3,779 |  |  | $ | 619 |
Reallocation of distributed income as a result of conversion of dilutive stock options |  |  | 5 |  |  |  | (5 | ) |  |  | 11 |  |  |  | (11 | )
Reallocation of distributed income due to conversion of Class B to Class A common shares outstanding |  |  | 344 |  |  |  | - |  |  |  | 608 |  |  |  | - |
Diluted distributed income applicable to common stockholders |  | $ | 3,356 |  |  | $ | 344 |  |  | $ | 4,398 |  |  | $ | 608 |
Undistributed income from continuing operations applicable to common stockholders |  | $ | 39,247 |  |  | $ | 4,560 |  |  | $ | 27,704 |  |  | $ | 4,537 |
Reallocation of undistributed income as a result of conversion of dilutive stock options |  |  | 69 |  |  |  | (69 | ) |  |  | 81 |  |  |  | (81 | )
Reallocation of undistributed income due to conversion of Class B to Class A |  |  | 4,491 |  |  |  | - |  |  |  | 4,456 |  |  |  | - |
Diluted undistributed income from continuing operations applicable to common stockholders |  | $ | 43,807 |  |  | $ | 4,491 |  |  | $ | 32,241 |  |  | $ | 4,456 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding used to calculate basic income per share from continuing operations |  |  | 23,052 |  |  |  | 2,678 |  |  |  | 22,221 |  |  |  | 3,639 |
Weighted average number of shares from stock options |  |  | 390 |  |  |  | - |  |  |  | 471 |  |  |  | - |
Conversion of Class B to Class A common shares outstanding |  |  | 2,678 |  |  |  | - |  |  |  | 3,639 |  |  |  | - |
Weighted average number of shares outstanding used to calculate diluted income per share from continuing operations |  |  | 26,120 |  |  |  | 2,678 |  |  |  | 26,331 |  |  |  | 3,639 |
Diluted income per share from continuing operations applicable to common stockholders |  | $ | 1.81 |  |  | $ | 1.81 |  |  | $ | 1.39 |  |  | $ | 1.39 |
Diluted distributed income per share from continuing operations applicable to common stockholders |  |  | (0.13 | ) |  |  | (0.13 | ) |  |  | (0.17 | ) |  |  | (0.17 | )
Diluted undistributed income per share from continuing operations applicable to common stockholders |  | $ | 1.68 |  |  | $ | 1.68 |  |  | $ | 1.22 |  |  | $ | 1.22 |
Six Months Ended June 30, |  | 2013 |  |  | 2012 |
Diluted EPS |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
Antidilutive Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable pursuant to stock options not included since they were antidilutive |  |  | 19 |  |  |  | - |  |  |  | 90 |  |  |  | - |

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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/2003/role/presentationRef -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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