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STOCKHOLDERS' EQUITY (Tables)
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Schedule of Common Stock Reserved for Future Issuance Common stock reserved for future issuance as of December 31, 2019 and 2018, consisted of the following.
December 31, 2019December 31, 2018
Stock options and RSUs issued and outstanding6,809,257  4,599,307  
Stock options, RSUs and ESPP shares authorized for future issuance3,257,316  4,534,784  
Total10,066,573  9,134,091