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EARNINGS PER SHARE | 6 Months Ended
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Jun. 30, 2023
EARNINGS PER SHARE |
EARNINGS PER SHARE | 17. EARNINGS PER SHARE Basic and diluted weighted-average shares outstanding are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022 |
Basic weighted average shares outstanding |  | 15,969 |  | 15,355 |  | 15,921 |  | 15,226 |
Dilutive effect of potential common shares |  | 250 |  | 577 |  | 257 |  | 526 |
Diluted weighted average shares outstanding |  | 16,219 |  | 15,932 |  | 16,178 |  | 15,752 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ For the three and six months ended June 30, 2023 and 2022, the anti-dilutive common shares excluded from the calculation of diluted earnings per share were immaterial.

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