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NET EARNINGS (LOSS) PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2021
NET EARNINGS (LOSS) PER SHARE |
Components of denominator for calculation of basic and diluted net earnings (loss) per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended | ​ | For the Six Months Ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ | ​ | 2021 |  | 2020 |  | 2021 |  | 2020 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common shares outstanding, basic: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding, basic | ​ | 42,071,019 |  | 41,900,901 | ​ | 42,022,669 |  | 41,883,629 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common shares outstanding, diluted: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding, basic | ​ | 42,071,019 |  | 41,900,901 | ​ | 42,022,669 |  | 41,883,629 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Dilutive effect of warrants | ​ | — |  | — | ​ | — |  | — | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Dilutive effect of stock options | ​ | 340,072 | ​ | — | ​ | 214,413 | ​ | — | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Dilutive effect of restricted stock units | ​ | 201,041 |  | — | ​ | 208,102 |  | — | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding, diluted | ​ | 42,612,132 |  | 41,900,901 | ​ | 42,445,184 |  | 41,883,629 | ​

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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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