9. LOSS PER SHARE

The following table sets forth the computation of basic and fully diluted loss per share for the three and nine months ended September 30, 2023, and 2022 (in thousands, except per share amounts):

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Basic net income (loss) per share is computed using the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is computed using the treasury stock method to calculate the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential dilutive common shares include incremental common shares issuable upon the exercise of stock options, less shares from assumed proceeds. The assumed proceeds calculation includes actual proceeds to be received from the employee upon exercise and the average unrecognized stock compensation cost during the period.

Stock options to purchase 43,090 and 44,129 shares of common stock and warrants to purchase 194,974 and 197,000 shares of common stock were outstanding at September 30, 2023, and 2022 that were not included in the computation of diluted weighted average common stock outstanding because their effect would have been anti-dilutive.