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12. Derivative Liabilities | 3 Months Ended
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Mar. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
12. Derivative Liabilities | 12. 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 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 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 FV 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 FV 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 period on the Statement of Operations as a separate line item. The FV of these derivative liabilities is calculated using the Black Scholes pricing model that is based on 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 FV 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 FV of these derivative liabilities is subject to significant changes. The following assumptions were used to calculate the Black Scholes value of this derivative liability as of March 31, 2013:
Estimated fair value of underlying common stock |  |  | $0.15 |
Remaining life |  |  | 3.2 |
Risk-free interest rate |  |  | 0.38% |
Expected volatility |  |  | 140.7% |
Dividend yield |  |  | – |

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- Definition The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80784-113994 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624181-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5708775-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41641-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579240-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41638-113959 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41635-113959 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. 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