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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2021
EARNINGS PER SHARE |
Schedule of reconciliation of the number of shares (denominator) used in the basic and diluted earnings per share computations | The following is a reconciliation of the number of shares (denominator) used in the basic and diluted earnings per share computations (shares in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, | ​
​ | ​ | 2021 | ​ | 2020 | ​
​ | ​ | ​ | ​ | Per Share | ​ | ​ | ​ | Per Share | ​
​ |  | Shares |  | Amount |  | Shares |  | Amount | ​
Basic |  | 18,595 |  | $ | 0.98 |  | 18,181 |  | $ | (0.24) | ​
Effect of dilutive stock options |  | 870 | ​ |  | (0.05) |  | — | ​ |  | — | ​
Diluted |  | 19,465 |  | $ | 0.93 |  | 18,181 |  | $ | (0.24) | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, | ​
​ | ​ | 2021 | ​ | 2020 | ​
​ | ​ | ​ | ​ | Per Share | ​ | ​ | ​ | Per Share | ​
​ |  | Shares |  | Amount |  | Shares |  | Amount | ​
Basic |  | 18,538 |  | $ | 1.42 |  | 18,169 |  | $ | (0.13) | ​
Effect of dilutive stock options |  | 843 | ​ |  | (0.06) |  | — | ​ |  | — | ​
Diluted |  | 19,381 |  | $ | 1.36 |  | 18,169 |  | $ | (0.13) | ​
​ ​

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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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