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Convertible Debt (Details) (USD $) | 9 Months Ended |  |  |  | 1 Months Ended | 9 Months Ended |  | 3 Months Ended | 4 Months Ended | 9 Months Ended |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended |  |
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Sep. 30, 2012 | Sep. 30, 2011 | Mar. 16, 2012 | Jun. 30, 2011 | Apr. 25, 2011 | Dec. 31, 2011 Senior Convertible Secured Notes- 2007 [Member] | Sep. 30, 2011 Senior Convertible Secured Notes- 2007 [Member] | Sep. 22, 2010 Senior Convertible Secured Notes- 2007 [Member] | Sep. 30, 2011 September 2009 Senior Convertible Secured Notes Financing transaction [Member] | Dec. 15, 2009 September 2009 Senior Convertible Secured Notes Financing transaction [Member] | Sep. 30, 2011 September 2009 Senior Convertible Secured Notes Financing transaction [Member] | Dec. 31, 2011 September 2009 Senior Convertible Secured Notes Financing transaction [Member] | Jun. 30, 2011 September 2009 Senior Convertible Secured Notes Financing transaction [Member] | Dec. 31, 2011 Senior Convertible Secured Notes- 2010 [Member] | Sep. 30, 2011 Senior Convertible Secured Notes- 2010 [Member] | Jun. 30, 2011 Senior Convertible Secured Notes- 2010 [Member] | Jun. 30, 2010 Senior Convertible Secured Notes- 2010 [Member] | Sep. 30, 2011 Senior Convertible Secured Notes- 2010 [Member] | Dec. 31, 2010 Senior Convertible Secured Notes- 2010 [Member] | Dec. 31, 2011 Senior Convertible Secured Notes- 2011 [Member] | Apr. 30, 2011 Senior Convertible Secured Notes- 2011 [Member] | Mar. 31, 2011 Senior Convertible Secured Notes- 2011 [Member] | Nov. 30, 2011 Senior Convertible Secured Notes- 2011 [Member] | Sep. 30, 2011 Senior Convertible Secured Notes- 2011 [Member] | Mar. 31, 2011 Senior Convertible Secured Notes- 2011 [Member] | Sep. 30, 2011 Senior Convertible Secured Notes- 2011 [Member] | Dec. 13, 2011 Senior Convertible Secured Notes- 2011 [Member] | Jun. 30, 2011 Senior Convertible Secured Notes- 2011 [Member]
Convertible Debt (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of convertible notes |  |  |  |  |  | Aug. 26, 2010 |  |  |  | Dec. 31, 2010 |  |  |  |  |  |  | Dec. 31, 2010 |  |  |  |  | Mar. 01, 2014 |  |  |  |  |  |
Convertible notes payable |  |  |  |  |  |  |  | $ 126,362 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Private Placement |  |  |  |  |  |  |  |  |  | 987,000 |  |  |  |  |  |  | 1,597,000 |  |  |  |  | 3,700,000 |  |  |  |  |  |
Extended maturity date of convertible promissory notes |  |  |  |  |  | Apr. 26, 2011 |  |  |  | Jun. 30, 2011 |  |  |  |  |  |  | Jun. 30, 2011 |  |  |  |  |  |  |  |  |  |  |
Debt-for-equity repayment plan |  |  |  |  |  | 15% discount from the average market closing price for the five days ending on the 25th of each month over the eight month period beginning September 26, 2010 ending on April 26, 2011. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of discount on common stock under debt-for-equity repayment plan |  |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading price of Common stock for automatic conversion of notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6.25 |  |  |  |  |  |
Maximum financing amount for automatic conversion of notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |  |  |
Right of holder under debt-for-equity repayment plan |  |  |  |  |  | Convert the outstanding balance priced at $2.25 per share if the market value of our common stock is greater than $2.50 per share for five consecutive days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Per share price when holders of notes had right to convert outstanding balance |  |  |  |  |  | $ 2.25 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Market value of common stock when holder can exercise right |  |  |  |  |  | $ 2.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued to holders of notes |  |  |  |  |  |  | 31,570 |  |  |  |  |  |  | 3,557,171 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt maturity, principal payment |  |  |  |  |  | 3,700,000 | 84,657 |  |  |  |  |  |  | 1,750,143 |  |  |  |  |  |  |  | 3,700,000 |  |  |  |  |  |
Debt maturity interest payment |  |  |  |  |  | 130,000 | 1,054 |  | 0 |  | 15,000 |  |  | 28,442 | 0 |  |  | 28,000 |  |  |  |  |  |  |  |  |  |
Conversion price |  |  |  |  |  |  |  |  |  | $ 0.50 |  |  |  |  |  |  | $ 0.50 |  |  |  |  | $ 2.50 |  |  | $ 2.50 |  | $ 2.50 |
Number of common stock issuable upon conversion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,691,320 |  |  |  |  |  |
Interest rate payable on notes |  |  |  |  |  |  |  |  |  | 7.00% |  | 7.00% | 7.00% | 7.00% |  |  | 7.00% |  | 7.00% |  |  | 7.00% |  |  | 7.00% |  |  |
Warrants Issued |  |  | 200,000 |  | 50,000 |  |  |  | 986,983 |  | 986,983 |  |  |  |  |  | 1,760,712 |  |  |  | 49,100 | 373,730 |  |  | 373,730 |  |  |
Period of warrants |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |
Investment Warrants, Exercise Price | $ 3.13 |  |  |  |  |  |  |  |  |  | $ 1.00 |  |  |  |  |  | $ 1.00 |  |  |  |  |  |  |  | $ 3.13 |  |  |
Period from which Warrants Exercisable |  |  |  |  |  |  |  |  |  |  | Beginning on the six-month anniversary of the date of issuance until the warrant expiration date. |  |  |  |  | Beginning on the six-month anniversary of the date of issuance until the warrant expiration date. |  |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities |  |  |  |  |  |  |  |  | 4,600,000 |  | 4,600,000 |  |  |  | 8,700,000 |  |  | 8,700,000 |  |  |  | 4,100,000 |  |  | 4,100,000 |  |  |
Loss on embedded derivative |  |  |  |  |  |  |  |  |  |  | 2,300,000 |  |  |  |  |  |  | 4,400,000 |  |  |  |  |  | 1,500,000 |  | 2,800,000 |  |
Fair value of embedded derivative liability |  |  |  |  |  |  |  |  | 0 |  | 0 |  |  |  | 0 |  |  | 0 |  | 0 |  |  |  | 7,600,000 |  | 7,600,000 | 0 |
Converted accounts payable related to private placement of convertible notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 163,000 |  |  |  |  |  |  |  |  |  |  |
Additional proceeds from issuance of private placement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 491,000 |  |  |  |  |  |
Notes would automatically converted into common stock on or before due date when |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (a) the Company''s common stock is traded at a price per share of $6.25 or higher for five (5) consecutive trading days, or (b) the Company consummates a financing in the amount of at least $5 million |  |  | (a) the Company''s common stock is traded at a price per share of $6.25 or higher for five (5) consecutive trading days, or (b) the Company consummates a financing in the amount of at least $5 million |  |  |
Additional annual interest rate for non payment of loan principal and accrued interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  | 10.00% |  |  |
Investor receives number of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Each investor receiving a number of March 2011 Warrants that was equal to twenty-five percent (25%) of the investor''s note to the Company |  |  | Each investor receiving a number of March 2011 Warrants that was equal to twenty-five percent (25%) of the investor''s note to the Company |  |  |
Proceeds from exercise of warrants | 155,000 | 515,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 491,000 |  |  |  |  |  |  |
Debt discount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,900,000 |  |  | 2,900,000 |  |  |
Interest expense on debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |  |  |
Value of warrants on relative fair value basis using Black-Scholes option pricing model |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 813,000 |  |  | 813,000 |  |  |
Accrued Interest |  |  |  | 69,628 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued Interest Paid To Note Holders |  |  |  | 10,277 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes converted to common stock, amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 575,000 |  |  |  |  |
Notes converted, original debt, amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,200,000 |  |  |  |  |
Shares issued of unregistered common stock to note holders |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 27,851
Notes converted to shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,513,237 |  |  | 232,125 |  |  |  |  |
Proceeds from public offering pursuant to registration statement on form S-3 (in excess) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000 |
Bonus interest feature common stock issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 99,461 |

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