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NET LOSS PER SHARE (Details) - shares |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 10, 2014 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Common shares outstanding, basic: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding-basic |  | 41,933,926 | 41,928,682 | 41,900,901 | 41,866,357 | 41,832,942 | 41,749,200 | 41,742,301 | 41,726,106 | 41,907,597 | 41,762,893 | 38,382,599
Common shares outstanding, diluted: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding-basic |  | 41,933,926 | 41,928,682 | 41,900,901 | 41,866,357 | 41,832,942 | 41,749,200 | 41,742,301 | 41,726,106 | 41,907,597 | 41,762,893 | 38,382,599
Weighted-average common shares outstanding, diluted (in shares) |  | 41,933,926 | 41,928,682 | 41,900,901 | 41,866,357 | 41,989,553 | 41,749,200 | 41,742,301 | 41,726,106 | 41,907,597 | 41,762,893 | 38,382,599
Restricted Stock and Restricted Stock Units |  |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive shares (in shares) |  |  |  |  |  |  |  |  |  | 298,834 | 162,096 | 149,170
Stock Options |  |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive shares (in shares) |  |  |  |  |  |  |  |  |  | 837,338 | 496,148 | 255,608
Equity Warrants |  |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive shares (in shares) |  |  |  |  |  |  |  |  |  | 3,936,761 | 3,936,761 | 3,936,761
Equity Warrants |  |  |  |  |  |  |  |  |  |  |  |
Equity warrant term | 7 years |  |  |  |  |  |  |  |  |  |  |
Number of shares of new stock in which each warrant or right can be converted | 0.10 |  |  |  |  |  |  |  |  |  |  |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + 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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