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Summary of Significant Accounting Policies and New Accounting Standards (Tables) | 9 Months Ended
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Mar. 31, 2021
Summary of Significant Accounting Policies and New Accounting Standards |
Schedule of net income per share and weighted average shares | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months | ​ | Nine Months
For the Periods Ended March 31 |  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income | ​ | $ | 12,161 | ​ | $ | 13,501 | ​ | $ | 37,264 | ​ | $ | 27,910
Weighted average number of shares – basic | ​ |  | 40,483 | ​ |  | 40,454 | ​ |  | 40,463 | ​ |  | 40,454
Dilutive effect of stock options and restricted stock units | ​ |  | 21 | ​ |  | 50 | ​ |  | 41 | ​ |  | 50
Weighted average number of shares – diluted | ​ |  | 40,504 | ​ |  | 40,504 | ​ |  | 40,504 | ​ |  | 40,504
Net income per share | ​ |  | ​ | ​ |  |  | ​ |  | ​ | ​ |  |
basic | ​ | $ | 0.30 | ​ | $ | 0.33 | ​ | $ | 0.92 | ​ | $ | 0.69
diluted | ​ | $ | 0.30 | ​ | $ | 0.33 | ​ | $ | 0.92 | ​ | $ | 0.69

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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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