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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Schedule of Common Stock Reserved for Issuance

The Company is required to reserve and keep available out of its authorized but unissued shares of common stock a number of shares sufficient to effect the conversion of all outstanding options granted and available for grant under the incentive plans, shares reserved for issuance under the employee stock purchase plan and issued warrants.

	December 31, 2021		December 31, 2020
Shares reserved under Series A warrant		7,790,879		7,802,241
Shares reserved under Series B warrant		2,524,732		2,574,727
Shares reserved for future option grants under equity plans		1,207,827		1,117,796
Outstanding stock options under equity incentive plans		4,937,189		4,146,928
Outstanding warrants		727,122		727,122
Shares reserved under the 2015 employee stock purchase plan		17,500		17,500
Total common stock reserved for issuance		17,205,249		16,386,314

- Definition

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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+ Details