Derivative Liability

9 Months Ended

Sep. 30, 2012

Derivative liability [Abstract]

Derivative liability

5. Derivative liability

The Company has determined that certain warrants related to the Company's financings and the embedded conversion feature on the Series A-1 Preferred Stock require liability classification because of certain provisions that may result in an adjustment to the number of shares upon settlement and an adjustment to their exercise or conversion. The fair value of the embedded conversion feature for the Series A-1 Preferred Stock at September 30, 2012, and December 31, 2011, was insignificant.

The Company has issued a total of 9,811 shares of Series B Preferred Stock and 4,073 shares of Series C Preferred Stock, respectively. At December 31, 2010, the Company determined that the embedded conversion feature on these shares required liability classification due to the impact the anti-dilution provisions could have had on the number of shares issuable upon conversion. The fair value of the embedded conversion feature on the Series B Preferred Stock at December 31, 2010, was approximately $136, and the fair value of the embedded conversion feature on the Series C Preferred Stock was approximately $179. On March 31, 2011, the Company amended its Amended and Restated Certificate of Designation for its Series B Preferred Stock and its Certificate of Designation for its Series C Preferred Stock by amending the anti-dilution provisions (see Note 7 to the Condensed Consolidated Financial Statements). As a result of these amendments, the Series B Preferred Stock and Series C Preferred Stock no longer require liability classification.

In March 2011, the Company issued fee warrants to related parties to purchase 1,778 shares of common stock in connection with a private placement sale of 800 shares of Series C Preferred Stock and recorded a derivative liability of $4 as of March 31, 2011. The fair market value of the derivative liability at September 30, 2012, was $4 (Note 7 to the Condensed Consolidated Financial Statements).

In August 2011, the Company issued 1,000 warrants as part of consulting agreements. The Company ascribed a value of $1 to the warrants using a modified Black Scholes pricing model with the following assumptions; risk free interest rate of 0.07, expected life of three years, expected volatility of 190%, and a dividend yield of 0. The warrants have a three year life and expire on August 11, 2014. As of September 30, 2012, the fair value of the warrants was $2.

In September 2011, the Company issued 5,556 warrants, the September 2011 Warrant, in connection with the September 2011 Purchase Agreement. The Company ascribed a value of $13 to the September 2011 Warrant using a modified Black Scholes pricing model with the following assumptions; risk free interest rate of 0.42, expected life of three years, expected volatility of 204%, and a dividend yield of 0. The September 2011 Warrant has a three year life and expires on August 11, 2014. As of September 30, 2012, the fair value of the September 2011 Warrant was $12.

In December 2011, the Company issued 5,556 warrants, the December 2011 Warrants in connection with the December 2011 Purchase Agreement. The Company ascribed a value of $13 to the December 2011 Warrants using a modified Black Scholes pricing model with the following assumptions; risk free interest rate of 0.39%, expected life of three years, expected volatility of 202%, and a dividend yield of 0. The December 2011 Warrants have a three year life and expire on August 11, 2014. In February 2012, 5,000 of the warrants were exercised, 4,889 in a cashless exercise and 111 for cash. The Company issued 4,043 shares of common stock related to the exercise and received $2 in cash. As of September 30, 2012, the fair value of the 556 remaining December 2011 Warrants was $1.

The Company issued 5,349 warrants in connection with the April 2012 notes. (See note 4 to the Condensed consolidated Financial Statements).

The fair value of the outstanding derivative liabilities at September 30, 2012, and December 31, 2011, was $182 and $281, respectively.

The Company uses the Black-Scholes pricing model to calculate fair value of its warrant derivative liabilities. Key assumptions used to apply these models are as follows:

	September 30, 2012	December 31, 2011
Expected term	0.3 to 2.60 years	0.5 to 2.90 years
Volatility	203.6%	204.7% - 315.2%
Risk-free interest rate	1.65%	0.06% - 0.36%
Dividend yield	0%	0%

Fair value measurements:

Assets and liabilities measured at fair value as of September 30, 2012, are as follows:

	Value at	Quoted prices in active markets	Significant other observable inputs	Significant unobservable inputs
	September 30, 2012	(Level 1)	(Level 2)	(Level 3)
Derivative liability	$ 182	$ -	$ -	$ 182

The fair value framework requires a categorization of assets and liabilities into three levels based upon the assumptions (inputs) used to price the assets and liabilities. Level 1 provides the most reliable measure of fair value, whereas Level 3 generally requires significant management judgment. The three levels are defined as follows:

Level 1: Unadjusted quoted prices in active markets for identical assets and liabilities.

Level 2: Observable inputs other than those included in Level 1. For example, quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets.

Level 3: Unobservable inputs reflecting management's own assumptions about the inputs used in pricing the asset or liability.

There were no financial assets or liabilities measured at fair value, with the exception of cash and cash equivalents (Level 1) and the above mentioned derivative liability (Level 3) as of September 30, 2012, and December 31, 2011, respectively.

Changes in the fair market value of the Level 3 derivative liability for the nine-month period ended September 30, 2012, are as follows:

	Derivative Liability
Balance at January 1, 2012	$ 281
Additional liabilities recorded for warrants issued related to note financing	47
Additional liabilities recorded related to warrants issued for services	3
Gain on derivative liability	(149)
Balance at September 30, 2012	$ 182