Stockholders' Equity | Note 9. Stockholders Equity During the three months ended March 31, 2016 pursuant to a securities purchase agreement between us and certain accredited investors, we sold 7,186,817 shares of our common stock (Shares) and warrants to purchase up to 3,593,408 Shares (Warrants) for aggregate gross proceeds to us of $5,749,454. The financing consists of two components: a new equity raise in the amount of $3,270,000 and the conversion into common equity of $2,479,456 of principal and interest of convertible promissory notes previously issued. An additional $154,044 of the previously issued convertible promissory note had committed to the conversion prior to March 31, 2016 and subsequent to March 31, 2016 an additional 192,554 shares have been issued bringing the total number of shares sold to 7,379,371, the total warrants issued to 3,689,686 and the aggregate gross proceeds to $5,903,498. See discussion in Note 6. The Warrants are exercisable for a term of five-years at a per Share price of $1.00. The fair value of the warrants, $1,886,327, was estimated at the date of grant using the Black-Scholes option pricing model, with an allocation of the proceeds applied to the warrants. The fair value of the warrants has been included in the total additional paid in capital. The following assumptions were used in the Black-Scholes option pricing model: Expected life (in years) 5 Volatility (based on a comparable company) 78.12 % Risk Free interest rate 1.23 % Dividend yield (on common stock) - In addition, we had previously recorded debt discount on the convertible promissory note discussed above. As a result of the conversion we wrote off the remaining balance, $440,201, against additional paid in capital. Also, during the three months ended March 31, 2016, we issued 210,455 shares of our common stock upon the conversion of outstanding convertible debt, not included in the equity raise described above, representing $50,000 in principal and $2,613.70 in interest. During the three months ended March 31, 2016, the holder of warrants to purchase shares of common stock exercised their rights and purchased 400,000 shares of common stock for an aggregate price of $240,000. Also during the three months ended March 31, 2016 we issued 64,599 shares of stock to a member of our board of directors in lieu of $50,000 in director fees due. We valued the shares based on the trading value on the date issued. During the three months ended March 31, 2016, we issued 45,000 options to purchase our common stock to employees of the Company. The exercise price of the options ranged from $0.81 to $0.83 per share, and are exercisable for a period of 8 years and vest on the third anniversary of issuance. The fair value of the options ($23,928 in the aggregate) was calculated using the Black-Sholes option pricing model, based on the criteria shown below, and are being expensed over the vesting period of each option. Expected life (in years) 5.5 Volatility (based on a comparable company) 76% to 77 % Risk Free interest rate 1.49% to 1.73 % Dividend yield (on common stock) - The total amount of equity based compensation for the three months ended March 31, 2016 included in additional paid in capital was $244,789. The following is a summary of outstanding stock options issued to employees and directors as of March 31, 2016: Number of Options Exercise price per share $ Average remaining term in years Aggregate intrinsic value at date of grant $ Outstanding December 31, 2015 3,575,000 0.50 - 210,000 Issued 45,000 0.81-0.83 7.87 - Cancelled - - - - Exercised (50,000 ) 0.51 Outstanding March 31, 2016 3,570,000 0.45 -0.87 5.19 210,000 Exercisable 1,570,000 0.45 -0.56 2.69 - |