6. Stockholders' Deficiency | Preferred Stock As of June 30, 2015 and December 31, 2014, the Company had accrued cumulative contractual dividends of $159,922 and $298,918, respectively, related to the Series B Preferred Stock. On January 1, 2015 and 2014, the Company issued 31,633 and 29,564 shares of Series B convertible preferred stock valued at approximately $299,000 and $279,000, respectively, representing approximately $0.66 in value per share of Series B Preferred Stock outstanding on each date, to the Series B convertible preferred stock owners as payment in kind for dividends. Stock Options Valuation In applying the Black-Scholes option pricing model to stock options, the Company used the following weighted average assumptions: For The Three Months Ended For The Six Months Ended June 30, June 30, 2015 2014 2015 2014 Risk free interest rate 1.35% to 1.85% n/a 1.35% to 1.85% n/a Dividend yield 0.00% n/a 0.00% n/a Expected volatility 195.0% n/a 195.0% n/a Expected life in years 5.5 to 10.0 n/a 5.5 to 10.0 n/a Grants The weighted average fair value of the stock options granted during the three and six months ended June 30, 2015 was $0.09 per share. There were no stock options granted during the three and six months ended June 30, 2014. On April 3, 2015, the Company granted options to employees of the Company to purchase an aggregate of 922,223 shares of common stock under the 2014 Equity Incentive Plan (the 2014 Plan) at an exercise price of $0.09 per share for an aggregate grant date value of $81,419. The options have a vesting period ranging from immediate to three years and have a term of ten years. On April 3, 2015, the Company granted options to consultants of the Company to purchase an aggregate of 149,861 shares of common stock under the 2014 Plan at an exercise price of $0.09 per share for an aggregate grant date value of $13,462. The options vested on the grant date and have a term of ten years. On April 7, 2015, the Company granted options to directors of the Company to purchase an aggregate of 102,189 shares of common stock under the 2014 Plan at an exercise price of between $0.09 per share for an aggregate grant date value of $9,000. The options vested on the grant date and have a term of ten years. The options were granted as part of director compensation approved by the Compensation Committee. Stock-based compensation expense related to stock options was recorded in the condensed consolidated statements of operations as a component of selling, general and administrative expenses and totaled $107,500 and $186,289 for the three and six months ended June 30, 2015, respectively, and $106,352 and $268,851 for the three and six months ended June 30, 2014, respectively. Option forfeitures are estimated at the time of valuation and reduce expense ratably over the vesting period. This estimate will be adjusted periodically based on the extent to which actual option forfeitures differ, or are expected to differ, from the previous estimate, when it is material. The Company estimated forfeitures related to option grants at an annual rate of 6% for options granted during the six months ended June 30, 2015. As of June 30, 2015, stock-based compensation expense related to stock options of $1,017,408 remains unamortized, including $125,839 which is being amortized over the weighted average remaining period of 1.2 years. The remaining $891,569 is related to a performance based option where vesting is currently deemed to be improbable and no amount is being amortized. Summary A summary of the stock option activity during the six months ended June 30, 2015 is presented below: Number of Options Weighted Average Exercise Price Weighted Average Remaining Life In Years Aggregate Intrinsic Value Outstanding, January 1, 2015 3,944,557 $ 1.27 Granted 1,174,273 0.09 Exercised - - Forfeited (110,000 ) 0.51 Outstanding, June 30, 2015 5,008,830 $ 1.01 7.5 $ 106,542 Exercisable, June 30, 2015 4,017,995 $ 0.96 7.9 $ 85,542 The following table presents information related to stock options at June 30, 2015: Options Outstanding Options Exercisable Range of Exercise Price Weighted Average Exercise Price Outstanding Number of Options Weighted Average Exercise Price Weighted Average Remaining Life In Years Exercisable Number of Options $0.09 - $2.20 $ 0.27 3,936,080 $ 0.26 8.9 3,201,245 $2.21 - $3.80 3.23 757,750 2.95 2.5 507,750 $3.81 - $6.99 4.88 315,000 4.88 6.6 309,000 $ 1.01 5,008,830 $ 0.96 7.9 4,017,995 Warrants Valuation In applying the Black-Scholes option pricing model to stock warrants, the Company used the following weighted average assumptions: For The Three Months Ended For The Six Months Ended June 30, June 30, 2015 2014 2015 2014 Risk free interest rate 1.26% to 1.68% 1.69% to 2.33% 1.26% to 1.75% 1.69% to 2.52% Dividend yield 0.00% 0.00% 0.00% 0.00% Expected volatility 195.0% to 197.0% 171.0% to 183.0% 195.0% to 197.0% 171.0% to 183.0% Expected life in years 5.00 to 7.30 5.00 to 8.30 5.00 to 7.50 5.00 to 8.50 Grants The weighted average fair value of the stock warrants granted during the three and six months ended June 30, 2015 was $0.09 and $0.08 per share, respectively. The weighted average fair value of the stock warrants granted during the three and six months ended June 30, 2014, was $0.17 and $0.21 per share, respectively. On April 3, 2015, the Company granted warrants to a former employee of the Company to purchase an aggregate of 137,430 shares of common stock at an exercise price of $0.09 per share for an aggregate grant date value of $12,018. The warrants have a term of five years. The warrants were issued as repayment for amounts previously accrued. Stock-based compensation expense related to warrants for the three and six months ended June 30, 2015 was recorded in the condensed consolidated statements of operations as a component of selling, general and administrative expenses and totaled $12,063 and $12,279, respectively, and $(852) and $(588) for the three and six months ended June 30, 2014, respectively. The remaining $576,840 is related to a performance based warrant where vesting is currently deemed to be improbable and no amount is being amortized. A summary of the stock warrant activity during the six months ended June 30, 2015 is presented below: Number of Warrants Weighted Average Exercise Price Average Remaining Life In Years Aggregate Intrinsic Value Outstanding, January 1, 2015 9,339,044 $ 0.45 Granted 637,430 $ 0.10 Exercised - $ - Forfeited - - Outstanding, June 30, 2015 9,976,474 $ 0.43 3.8 $ 33,246 Exercisable, June 30, 2015 9,716,474 $ 0.36 3.9 $ 33,246 The following table presents information related to stock warrants at June 30, 2015: Warrants Outstanding Warrants Exercisable Range of Exercise Price Weighted Average Exercise Price Outstanding Number of Warrants Weighted Average Exercise Price Weighted Average Remaining Life In Years Exercisable Number of Warrants $0.09 - $0.35 $ 0.27 9,383,628 $ 0.27 3.9 9,383,628 $0.36 - $3.00 2.91 562,846 2.91 1.2 312,846 $3.01 - $4.95 4.95 30,000 4.95 2.3 20,000 $0.09 - $4.95 $ 0.43 9,976,474 $ 0.36 3.9 9,716,474 |