Stockholders' (Deficit) Equity | Note 7 - Stockholders’ (Deficit) Equity Common Stock On April 23, 2019, the Company entered into a private placement offering with an investor and issued 400,000 shares of its common stock for $100,000. On August 13, 2019 the Board of Directors of the Company and a subset of the Company’s stockholders representing in excess of a majority of the Company’s currently issued and outstanding voting stock approved of the amendment and restatement of the Company’s Certificate of Incorporation (the “Restated Certificate”) to increase the authorized capital stock of the Company to 85,000,000 shares, consisting of 82,000,000 shares of common stock, par value one cent ($0.01) per share, 1,000,000 shares of Class B common stock, par value one cent ($0.01) per share, and 2,000,000 shares of preferred stock, par value one cent ($0.01) per share. Pursuant to applicable law, the Restated Certificate will become effective twenty days after the distribution of an information statement to all of the Company’s stockholders and after the filing of the Restated Certificate with the Delaware Secretary of State. Stock Options The Company uses the Black-Scholes model to value stock options which requires certain assumptions. The fair value of the Company’s common stock was based upon the publicly quoted price on the date that the final approval of the awards was obtained. The Company does not expect to pay dividends in the foreseeable future so therefore the expected dividend yield is 0%. The expected term for stock options granted with service conditions represents the average period the stock options are expected to remain outstanding and is based on the expected term calculated using the approach prescribed by the Securities and Exchange Commission’s Staff Accounting Bulletin for “plain vanilla” options. The expected term for stock options granted with performance and/or market conditions represents the period estimated by management by which the performance conditions will be met. The Company obtained the risk-free interest rate from publicly available data published by the Federal Reserve. The Company uses a methodology in estimating its volatility percentage from a computation that was based on a comparison of average volatility rates of similar companies to a computation based on the standard deviation of the Company’s own underlying stock price’s daily logarithmic returns. The grant date fair value of stock options granted during the nine months ended September 30, 2019 and 2018 was $818,000 and $8.4 million, respectively. On August 13, 2019, the Board approved the increase of the number of shares available under the 2016 Equity Plan to 30,000,000. The fair value of options granted during the nine months ended September 30, 2019 and 2018 were estimated using the following weighted-average assumptions: For the Nine Months Ended 2019 2018 Exercise price $ 0.26 $ 2.05 Expected stock price volatility 65 % 78 % Risk-free rate of interest 2.23 % 2.68 % Term (years) 3.1 4.0 A summary of option activity for employees and nonemployees under the Company’s stock option plan for the nine months ended September 30, 2019 is presented below: Number of Shares Weighted Average Total Intrinsic Value Weighted Average Remaining Contractual Life (in years) Outstanding as of December 31, 2018 15,724,000 $ 1.60 $ 1,924,000 4.5 Granted 7,070,000 0.26 2,000,000 4.6 Cancelled (1,750,000 ) 1.90 - - Expired (1,915,000 ) 0.55 604,000 - Outstanding as of September 30, 2019 19,129,000 $ 1.18 $ 2,518,000 4.4 Options vested and expected to vest as of September 30, 2019 19,129,000 $ 1.18 $ 2,518,000 4.4 Options vested and exercisable as of September 30, 2019 6,751,500 $ 0.97 $ 1,018,000 3.0 Estimated future stock-based compensation expense relating to unvested stock options is approximately $6.0 million as of September 30, 2019 and will be amortized over 3.0 years. Warrants A summary of the status of the Company’s outstanding warrants as of September 30, 2019 and changes during the nine months then ended is presented below: Number of Warrants Weighted Average Total Intrinsic Value Weighted Average Remaining Contractual Life (in years) Outstanding as of December 31, 2018 4,797,292 $ 1.62 $ 340,000 3.1 Issued 870,000 0.75 - 4.5 Outstanding as of September 30, 2019 5,667,292 $ 1.49 $ 134,000 2.8 Warrants exercisable as of September 30, 2019 5,417,292 $ 1.50 $ 134,000 2.7 Stock-based Compensation Expense For the three months ended September 30, 2019, there were approximately $729,000 and $18,000 stock-based compensation expenses included in the general and administrative and research and development expense, respectively, compared to $868,000 and $(28,000) for the three months ended September 30, 2018, respectively. For the nine months ended September 30, 2019, there were approximately $2.3 million and $59,000 stock-based compensation expenses included in the general and administrative and research and development expense, respectively, compared to stock-based compensation expenses of $2.2 million and $(245,000) for the nine months ended September 30, 2018, respectively. |