13. Derivative Liabilities	12 Months Ended
Dec. 31, 2012
Notes to Financial Statements
13. Derivative Liabilities	On May 24, 2011, the Company entered into a Securities Purchase Agreement (the “Purchase Agreement”) with eight investors (collectively, the “Investors”) pursuant to which the Company sold 8,700 shares of a new series of convertible preferred stock designated as Series E Convertible Preferred Stock (“Original Series E”), the terms of which are set forth in the Certificate of Designations of Series E Preferred Stock (the “Certificate”), for $1,000 per share, or $8,700,000 in the aggregate. In October 2012, the Company sold 1,000 shares of Series E for $1,000,000 (“New Series E”). The Original Series E and New Series E together are referred to herein as “Series E”. These Series E contain “full ratchet-down” liquidity protection that provides that if the Company issues securities for less than the existing conversion price for the Series E Preferred Stock or the strike price of the Series E warrants, then the conversion price for Series E Preferred Stock will be lowered to that lower price. Also, the strike price for Series E warrants will be decreased to that lower price and the number of Series E warrants will be increased such that the product of the original strike price times the original quantity equals the lower strike price times the higher quantity. Subsequent to the issuance of this Series E, the Company has determined that the warrants for these financings included certain embedded derivative features as set forth in ASC 815, “Derivatives and Hedging,” (“ASC 815”) and that this conversion feature of the Series E was not an embedded derivative because this feature was clearly and closely related to the host (Series E) as defined in ASC 815. These derivative liabilities were initially recorded at their estimated fair value on the date of issuance and are subsequently adjusted each quarter to reflect the estimated fair value at the end of each period, with any decrease or increase in the estimated fair value of the derivative liability for each period being recorded as other income or expense. Since the value of the embedded derivative feature for the related warrants was higher than the value of both Series E transactions, there was no beneficial conversion feature recorded for either transaction, and the excess of the value of the embedded derivative feature over the value of the transaction was recorded in each year on the Statement of Operations as a separate line item for each year presented. The fair value of these derivative liabilities is calculated using the commonly-accepted Black Scholes pricing model that is based on the following as of the date of calculation: the closing price of the common stock, the strike price of the underlying instrument, the risk-free interest rate for the applicable remaining life of the underlying instrument (i.e., the U.S. treasury rate for that period) and the historical volatility of the Company’s common stock. These fair value results are extremely sensitive to all these input variables, particularly the closing price of the company’s common stock and the volatility of the Company’s common stock. Accordingly, the fair values of these derivative liabilities are subject to significant changes.

13. Derivative Liabilities

12 Months Ended

Dec. 31, 2012

On May 24, 2011, the Company entered into a Securities Purchase Agreement (the “Purchase Agreement”) with eight investors (collectively, the “Investors”) pursuant to which the Company sold 8,700 shares of a new series of convertible preferred stock designated as Series E Convertible Preferred Stock (“Original Series E”), the terms of which are set forth in the Certificate of Designations of Series E Preferred Stock (the “Certificate”), for $1,000 per share, or $8,700,000 in the aggregate. In October 2012, the Company sold 1,000 shares of Series E for $1,000,000 (“New Series E”). The Original Series E and New Series E together are referred to herein as “Series E”.

These Series E contain “full ratchet-down” liquidity protection that provides that if the Company issues securities for less than the existing conversion price for the Series E Preferred Stock or the strike price of the Series E warrants, then the conversion price for Series E Preferred Stock will be lowered to that lower price. Also, the strike price for Series E warrants will be decreased to that lower price and the number of Series E warrants will be increased such that the product of the original strike price times the original quantity equals the lower strike price times the higher quantity.

Subsequent to the issuance of this Series E, the Company has determined that the warrants for these financings included certain embedded derivative features as set forth in ASC 815, “Derivatives and Hedging,” (“ASC 815”) and that this conversion feature of the Series E was not an embedded derivative because this feature was clearly and closely related to the host (Series E) as defined in ASC 815. These derivative liabilities were initially recorded at their estimated fair value on the date of issuance and are subsequently adjusted each quarter to reflect the estimated fair value at the end of each period, with any decrease or increase in the estimated fair value of the derivative liability for each period being recorded as other income or expense. Since the value of the embedded derivative feature for the related warrants was higher than the value of both Series E transactions, there was no beneficial conversion feature recorded for either transaction, and the excess of the value of the embedded derivative feature over the value of the transaction was recorded in each year on the Statement of Operations as a separate line item for each year presented.

The fair value of these derivative liabilities is calculated using the commonly-accepted Black Scholes pricing model that is based on the following as of the date of calculation: the closing price of the common stock, the strike price of the underlying instrument, the risk-free interest rate for the applicable remaining life of the underlying instrument (i.e., the U.S. treasury rate for that period) and the historical volatility of the Company’s common stock. These fair value results are extremely sensitive to all these input variables, particularly the closing price of the company’s common stock and the volatility of the Company’s common stock. Accordingly, the fair values of these derivative liabilities are subject to significant changes.