XML 56 R18.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value of Financial Instruments
 6 Months Ended
Jun. 30, 2014
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments

12. Fair Value of Financial Instruments

Our financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, convertible notes payable, notes payable, and warrant liability. We do not believe that we are exposed to significant interest, currency, or credit risks arising from these financial instruments. With the exception of the warrant liability, the fair values of these financial instruments approximates their carrying values using Level 3 inputs, based on their short maturities or, for long-term debt based on borrowing rates currently available to us for loans with similar terms and maturities. Gains and losses recognized on changes in fair value of convertible notes and warrant liability are reported in other income (expense).

We issued on April 18, 2014 an aggregate 1,141,000 warrants along with our issuance of 1,192,500 shares of common stock. We measured the warrants issued along with the common stock issuance during the quarter ended June 30, 2014 at fair value by applying the Black-Scholes-Merton option valuation model, which utilizes Level 3 inputs. The assumptions used in the Black-Scholes-Merton option valuation for the warrants are as follows: volatility of 99.3%; risk free interest rate of 0.2%; expected term of 1.5 years; and expected dividend yield of 0%. The grant date fair value of the initial warrant valuation described above was $0.99 per warrant. We base the risk free interest rate on U.S. Treasury rates with maturity dates approximating the expected term of the warrants. We base the historical volatility of a relevant sector index, which we have generated from companies that are publicly traded and do business within the industry we operate.

We issued on May 7, 2014 an aggregate 200,000 warrants for services during the quarter ended June 30, 2014. We measured the warrants at fair value by applying the Black-Scholes-Merton option valuation model, which utilizes Level 3 inputs. The assumptions used in the Black-Scholes-Merton option valuation for the warrants are as follows: volatility of 97.6%; risk free interest rate of 0.9%; expected term of 3.0 years; and expected dividend yield of 0%. The grant date fair value of the initial warrant valuation described above was $1.61 per warrant. We base the risk free interest rate on U.S. Treasury rates with maturity dates approximating the expected term of the warrants. We base the historical volatility of a relevant sector index, which we have generated from companies that are publicly traded and do business within the industry we operate.

We measured warrants issued in connection with the Stockbridge Senior Secured Convertible notes at fair value by applying the Black-Scholes-Merton option valuation model, which utilizes Level 3 inputs. The assumptions used in the Black-Scholes-Merton option valuation for the warrants are as follows: volatility of 66%; risk free interest rate of 1%; expected term of 5 years; and expected dividend yield of 0%. The grant date fair value of the initial warrant valuation described above was $2.56 per warrant. We base the risk free interest rate on U.S. Treasury rates with maturity dates approximating the expected term of the warrants. At the time of the initial warrant valuation, we were a private company and common stock transactions were too infrequent, therefore we could not practicably estimate the expected volatility of our own stock. Accordingly, we have substituted the historical volatility of a relevant sector index, which we have generated from companies that are publicly traded and do business within the industry we operate.

We measured the March 29, 2013 fair value by utilizing the quoted market price for our common stock and the valuation for the cashless exercise of Warrant 1-1, Warrant 1-5, and Warrant 1-6 in March 2013, which are Level 1 and Level 2 inputs. These inputs of (i) an observable warrant exercise transaction and (ii) publicly traded market price provided a reasonable basis for valuation for the warrants as of March 29, 2013. Based on that valuation using the $3.00 closing market price and exercisable rights in total to purchase 6,905,576 shares of our common stock at $0.37 per share, Warrant 1-1 and Warrant 1-5 had a net number value of $20,233,338. Using the same valuation method, Warrant 1-6 had a net number value of $1,465,000 upon issuance on March 29, 2013. All three warrants were exercised on March 29, 2013. See Note 9 for further discussion regarding the cashless exercise of these warrants.