6. Stockholders' Deficiency | Preferred Stock As of March 31, 2016 and December 31, 2015, the Company had accrued contractual dividends of $85,558 and $319,853, respectively, related to the Series B Preferred Stock. On January 1, 2016 and 2015, the Company issued 33,847 and 31,633 shares of Series B convertible preferred stock valued at approximately $320,000 and $299,000, 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 holders 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 March 31, 2016 2015 Risk free interest rate 1.63% to 2.12% n/a Dividend yield 0.00% n/a Expected volatility 199% to 200.0% n/a Expected life in years 5.5 to 10.0 n/a Grants The weighted average fair value of the stock options granted during the three months ended 31, 2016 was $0.24 per share. There were no stock options granted during the three months March 31, 2015. During the three months ended March 31, 2016, the Company granted options to consultants and directors of the Company to purchase an aggregate of 172,254 shares of common stock under a previously approved plan at exercise prices ranging between $0.24 and $0.25 per share for an aggregate grant date value of $41,379. The options vested on the grant date and have a term of ten years. 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 $75,138 and $78,789 for the three months ended March 31, 2016 and 2015, respectively. As of March 31, 2016, stock-based compensation expense related to stock options of $996,064 remains unamortized, including $104,495 which is being amortized over the weighted average remaining period of 2.0 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 three months ended March 31, 2016 is presented below: Weighted Average Average Remaining Aggregate Number of Exercise Life Intrinsic Options Price In Years Value Outstanding, January 1, 2016 5,341,284 $ 0.70 Granted 172,254 0.24 Exercised - - Forfeited (132,333 ) 0.49 Outstanding, March 31, 2016 5,381,205 $ 0.69 7.6 $ 332,554 Exercisable, March 31, 2016 4,169,539 $ 0.62 7.6 $ 240,254 The following table presents information related to stock options at March 31, 2016: Options Outstanding Options Exercisable Weighted Weighted Weighted Range of Average Outstanding Average Average Exercisable Exercise Exercise Number of Exercise Remaining Life Number of Price Price Options Price In Years Options $ 0.09 - $2.20 $ 0.23 4,701,705 $ 0.25 8.0 3,740,039 $ 2.21 - $3.80 3.35 492,500 2.88 3.8 242,500 $ 3.81 - $6.99 5.17 187,000 5.17 5.4 187,000 $ 0.69 5,381,205 $ 0.62 7.6 4,169,539 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 March 31, 2016 2015 Risk free interest rate 1.58% 1.50% Dividend yield 0.00% 0.00% Expected volatility 200.0% 196.0% Contractual term in years 5.00 5.00 Grants The weighted average fair value of the stock warrants granted during the three months ended March 31, 2016 and 2015, was $0.24 and $0.08 per share, respectively. Stock-based compensation expense related to warrants for the three months ended March 31, 2016 and 2015 was recorded in the condensed consolidated statements of operations as a component of selling, general and administrative expenses and totaled $0 and $216, respectively. As of March 31, 2016, stock-based compensation expense related to warrants of $576,840 remains unamortized. 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 three months ended March 31, 2016 is presented below: Weighted Average Average Remaining Aggregate Number of Exercise Life Intrinsic Warrants Price In Years Value Outstanding, January 1, 2016 10,046,198 $ 0.41 Granted 75,000 0.25 Exercised - - Forfeited - - Outstanding, March 31, 2016 10,121,198 $ 0.40 3.1 $ 150,922 Exercisable, March 31, 2016 9,871,198 $ 0.34 3.1 $ 150,922 The following table presents information related to stock warrants at March 31, 2016: Warrants Outstanding Warrants Exercisable Weighted Weighted Weighted Range of Average Outstanding Average Average Exercisable Exercise Exercise Number of Exercise Remaining Life Number of Price Price Warrants Price In Years Warrants $ 0.10 - $0.35 $ 0.25 9,571,198 $ 0.25 3.2 9,571,198 $ 0.36 - $3.00 2.90 520,000 2.90 0.5 270,000 $ 3.01 - $4.95 4.95 30,000 4.95 1.5 30,000 $ 0.10 - $4.95 $ 0.40 10,121,198 $ 0.33 3.1 9,871,198 |