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NET LOSS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2020
NET LOSS PER SHARE |
Components of denominator for calculation of basic and diluted net (loss) earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Years Ended December 31, | ​ | ​
​ |  | 2020 |  | 2019 |  | 2018 | ​ |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common shares outstanding, basic: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding, basic | ​ | 41,907,597 |  | 41,762,893 | ​ | 38,382,599 | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common shares outstanding, diluted: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding, basic | ​ | 41,907,597 |  | 41,762,893 | ​ | 38,382,599 | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Dilutive effect of warrants | ​ | — |  | — | ​ | — | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Dilutive effect of stock options | ​ | — | ​ | — | ​ | — | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Dilutive effect of restricted stock awards | ​ | — |  | — | ​ | — | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average common shares outstanding, diluted | ​ | 41,907,597 |  | 41,762,893 | ​ | 38,382,599 | ​ | ​

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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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