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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2020
EARNINGS PER SHARE |
Schedule of basic and diluted weighted-average shares outstanding | Basic and diluted weighted-average shares outstanding are as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
Basic weighted average shares outstanding |  | 9,509 |  | 9,408 |  | 9,474 |  | 9,378 |
Dilutive effect of equity awards |  | 27 |  | 48 |  | 44 |  | 41 |
Diluted weighted average shares outstanding |  | 9,536 |  | 9,456 |  | 9,518 |  | 9,419 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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