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STOCKHOLDERS' EQUITY (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Schedule of Common Stock Reserved for Future Issuance

Common stock reserved for future issuance is as follows (in common stock equivalent shares):

	March 31, 2018			December 31, 2017
Common stock warrants	17,331			17,331
Stock options and RSUs issued and outstanding	4,352,640			3,099,173
Authorized for future stock awards under the Company's option plans	789,288			1,006,307
Authorized for future issuance under the ESPP	586,148			380,875
Total	5,745,407			4,503,686

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Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding.

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