7.	Net Income (Loss) Per Share

Basic net income (loss) per share is computed by dividing the net income (loss) for the period by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is computed by dividing the net income (loss) for the period by the weighted average number of common and potentially dilutive common shares outstanding during the period. Potentially dilutive common shares consist of the common shares issuable upon the exercise of stock options and warrants. Potentially dilutive common shares are excluded from the calculation if their effect is antidilutive.

At September 30, 2019, there were options, including options granted to non-employees and non-directors, restricted stock units and warrants to purchase 1,080,059, 473,933 and 1,063,775 shares of common stock, respectively, outstanding that could potentially dilute future net income (loss) per share. Because the Company had a net loss for the three and nine months ended September 30, 2019, it is prohibited from including potential common shares in the computation of diluted per share amounts. Accordingly, the Company has used the same number of shares outstanding to calculate both the basic and diluted loss per share. At September 30, 2018, there were options, including options to non-employees and non-directors, and warrants to purchase 1,188,392 and 86,250 shares of common stock, respectively, outstanding that could potentially dilute future net income (loss) per share.