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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2020
Earnings Per Share [Abstract] |
Schedule of antidilutive securities |
| June 30,
| 2019 |  | 2020
Common stock options | 1,620 |  |  | 715 |
Common stock warrants | 868 |  |  | — |
Unvested restricted stock units | 1,846 |  |  | 2,627 |
Common stock issuable pursuant to the ESPP | 22 |  |  | 9 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + 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 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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