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Note 8 - Earnings Per Share (Tables) | 12 Months Ended
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Jun. 30, 2017
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Year Ended June 30, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Net earnings used for basic and diluted earnings per share |  | $ | 76,086 |  |  | $ | 104,476 |  |  | $ | 107,735 |
Weighted average shares used in basic computation |  |  | 37,313 |  |  |  | 37,194 |  |  |  | 37,096 |
Dilutive stock options |  |  | 187 |  |  |  | 132 |  |  |  | 135 |
Weighted average shares used in diluted computation |  |  | 37,500 |  |  |  | 37,326 |  |  |  | 37,231 |
Basic EPS |  | $ | 2.04 |  |  | $ | 2.81 |  |  | $ | 2.90 |
Diluted EPS |  | $ | 2.03 |  |  | $ | 2.80 |  |  | $ | 2.89 |

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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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