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EQUITY INCENTIVE PLAN (Tables) | 12 Months Ended
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Dec. 31, 2020
EQUITY INCENTIVE PLAN [Abstract] |
Summary of stock option activity | The following table summarizes stock option activity under our plans during the year ended December 31, 2020:
|  | Number of |  | Weighted-Average
|  | Options |  | Exercise Price
Outstanding at January 1, 2020 |  | 490,330 |  | $ | 8.30
Granted |  | 433,550 |  |  | 2.01
Forfeited |  | (100,888) |  |  | 12.64
Outstanding at December 31, 2020 |  | 822,992 |  | $ | 4.46
Exercisable at December 31, 2020 |  | 337,155 |  | $ | 6.59

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