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EARNINGS PER SHARE | 9 Months Ended
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Sep. 30, 2020
EARNINGS PER SHARE |
EARNINGS PER SHARE | 17. EARNINGS PER SHARE Basic and diluted weighted-average shares outstanding are as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Nine months ended | ​
​ | ​ | September 30, | ​ | September 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
Basic weighted average shares outstanding |  | 9,514 |  | 9,414 |  | 9,487 |  | 9,390 |
Dilutive effect of equity awards |  | 65 |  | 50 |  | 52 |  | 45 |
Diluted weighted average shares outstanding |  | 9,579 |  | 9,464 |  | 9,539 |  | 9,435 |
​ For the three and nine months ended September 30, 2020 and 2019, the anti-dilutive common shares excluded from the calculation of diluted earnings per share were immaterial.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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