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Summary of Significant Accounting Policies and New Accounting Standards (Tables) | 6 Months Ended
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Dec. 31, 2021
Summary of Significant Accounting Policies and New Accounting Standards |
Schedule of net income per share and weighted average shares | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months | ​ | Six Months
For the Periods Ended December 31 |  | 2021 |  | 2020 |  | 2021 |  | 2020
Net income | ​ | $ | 17,465 | ​ | $ | 12,801 | ​ | $ | 23,999 | ​ | $ | 25,103
Weighted average number of shares – basic | ​ |  | 40,504 | ​ |  | 40,454 | ​ |  | 40,504 | ​ |  | 40,454
Dilutive effect of restricted stock units | ​ |  | — | ​ |  | 50 | ​ |  | — | ​ |  | 50
Weighted average number of shares – diluted | ​ |  | 40,504 | ​ |  | 40,504 | ​ |  | 40,504 | ​ |  | 40,504
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income per share | ​ |  | ​ | ​ |  |  | ​ |  | ​ | ​ |  |
basic | ​ | $ | 0.43 | ​ | $ | 0.32 | ​ | $ | 0.59 | ​ | $ | 0.62
diluted | ​ | $ | 0.43 | ​ | $ | 0.32 | ​ | $ | 0.59 | ​ | $ | 0.62

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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=124432515&loc=d3e3550-109257 + Details
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