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Stockholders' Equity (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 12 Months Ended |  |  |  | 0 Months Ended | 1 Months Ended | 12 Months Ended |  |  | 1 Months Ended | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |  | 1 Months Ended | 12 Months Ended
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Nov. 19, 2010 | Nov. 04, 2010 | Sep. 23, 2010 | Sep. 25, 2010 | Sep. 13, 2010 | Mar. 21, 2010 | Feb. 29, 2012 | Apr. 30, 2011 | Mar. 31, 2011 | Nov. 30, 2010 | Oct. 31, 2010 | Sep. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Mar. 16, 2012 | Jun. 30, 2011 | Apr. 25, 2011 | Dec. 13, 2010 | Oct. 11, 2010 | Sep. 22, 2010 | Sep. 08, 2010 | May 27, 2010 | Mar. 27, 2010 | Dec. 31, 2011 Senior Convertible Secured Notes- 2011 [Member] | Nov. 30, 2011 Senior Convertible Secured Notes- 2011 [Member] | Apr. 30, 2011 Senior Convertible Secured Notes- 2011 [Member] | Dec. 31, 2011 Senior Convertible Secured Notes- 2011 [Member] | Dec. 31, 2012 Senior Convertible Secured Notes- 2011 [Member] | Dec. 13, 2011 Senior Convertible Secured Notes- 2011 [Member] | Mar. 31, 2011 Senior Convertible Secured Notes- 2011 [Member] | Dec. 29, 2010 Senior Convertible Secured Notes - 2007 [Member] | Dec. 13, 2010 Senior Convertible Secured Notes - 2007 [Member] | Sep. 29, 2010 Senior Convertible Secured Notes - 2007 [Member] | Oct. 31, 2010 Senior Convertible Secured Notes - 2007 [Member] | Sep. 30, 2010 Senior Convertible Secured Notes - 2007 [Member] | Dec. 31, 2012 Senior Convertible Secured Notes - 2007 [Member] | Dec. 31, 2011 Senior Convertible Secured Notes - 2007 [Member] | Dec. 31, 2010 Senior Convertible Secured Notes - 2007 [Member] | Sep. 22, 2010 Senior Convertible Secured Notes - 2007 [Member] | Mar. 31, 2009 Series A Preferred Stock [Member] | Dec. 31, 2008 Series A Preferred Stock [Member] | Dec. 31, 2012 Series A Preferred Stock [Member] | Dec. 31, 2011 Series A Preferred Stock [Member] | Mar. 31, 2009 Series B Preferred Stock [Member] | Dec. 31, 2012 Series B Preferred Stock [Member] | Dec. 31, 2011 Series B Preferred Stock [Member] | Mar. 31, 2012 Common Stock | Dec. 31, 2012 Common Stock | Dec. 31, 2011 Common Stock Senior Convertible Secured Notes - 2007 [Member] | Dec. 31, 2011 Common Stock Senior Convertible Secured Notes - 2009 [Member] | Dec. 31, 2011 Common Stock Series A Preferred Stock [Member] | Dec. 31, 2011 Common Stock Series B Preferred Stock [Member]
Stockholders Equity (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issuable upon exercise of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  | 361,000 |  |  | 200,000 |  | 50,000 |  |  |  |  |  |  | 422,830 |  |  | 422,830 |  |  | 373,730 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued using exercise provision |  |  |  |  |  |  |  |  |  |  |  |  |  | 235,144 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 174,798 |  |  |  |  |
Conversion of Stock, Shares Issued |  |  |  |  |  |  |  |  |  |  |  |  |  | 361,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,844,814 |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,516,447 |  |  |  |  |  |  | 2,509 |  |  |  |
Preferred stock, liquidation preference |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.001 | $ 0.001 |  | $ 0.001 | $ 0.001 |  |  |  |  |  |
Preferred stock, voting rights |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | One vote for each share. |  |  | One vote for each share. |  |  |  |  |  |  |
Preferred stock conversion ratio per share of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 480.63 |  |  | 132.07 |  |  |  |  |  |  |
Conversion of shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 52,439 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,892 |  |  | 12,547 |  |  |  |  |  | 39,790 | 6,282
Shares issued of unregistered common stock to note holders |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 27,851 |  |  | 27,851 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of senior convertible secured notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,002 | 9,866 | 11,462 | 12,966 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bonus interest feature common stock issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 99,461 |  |  | 99,461 |  | 99,461 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bonus interest feature common stock issued, Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 399,000 |  |  | $ 399,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Value |  |  |  |  | 562,828,000 | 26,000,000 |  |  |  |  |  |  |  | 33,000 | 33,000 |  |  |  |  |  | 84,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes converted to common stock, amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 575,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,700,000 |  |
Shares issued on conversion of convertible notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,513,237 | 232,125 | 1,691,320 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,408,657 |  |
Stock issued to holders of notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 31,570 |  |  |  |  |  |  |  |  |  |  |  | 31,570 |  |  |
Debt conversion convertible instrument principal balance and accrued interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,600,000 |  |  | 4,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 86,000 |  |  |
Description of common stock conversion rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 480.63 shares of common stock for each share of Series A Preferred stock. |  |  |  | 132.07 shares of our common stock for each shares of Series B Preferred stock. |  |  |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  |  |  | 70,000,000 |  |  |  |  |  |  | 70,000,000 | 70,000,000 |  |  |  |  | 848,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 444,541 | 444,541 |  | 54,425 | 54,425 |  |  |  |  |  |
Stockholders' equity, reverse stock split |  |  |  |  |  |  | 1-for-25 |  |  |  |  |  |  | Twenty-five-to-one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock upon exercise of warrants one |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  | 54,775 | 515,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock upon exercise of warrants two, share |  |  |  |  |  |  |  |  |  |  |  |  |  | 122,238 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock upon exercise of warrants two, value |  |  |  |  |  |  |  |  |  |  |  |  |  | 168,668 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price one |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercise price two |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.38 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of warrant into common stock, shares converted |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 493,426 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of common stock, warrant repricing and preferred stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,787,000 | 2,421,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,628 |  |  |  |  | 170 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued |  |  | 6,933 | 15,000 | 450,263 | 35,000 |  |  |  |  |  |  |  | 33,331,182 | 32,778,993 |  |  |  |  |  | 48,000 | 120,111 | 16,894 |  | 3,136 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants, exercise price |  |  | $ 1.00 | $ 1.00 |  | $ 1.00 |  | $ 1.00 | $ 3.13 |  |  | $ 1.00 | $ 1.00 |  | $ 2 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant issued to purchase common stock |  |  | 6,933 | 15,000 |  | 35,000 |  |  |  |  |  |  |  |  | 20,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued to investors |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net direct selling costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other direct offering costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of warrants |  |  |  |  |  | 26,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible promissory notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 59,000 | 12,500 | 1,600 | 1,600 |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 126,362 |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.50 |  | $ 0.50 | $ 0.50 |  |  |  |  | $ 2.5 | $ 2.50 |  |  |  |  |  |  | $ 87.50 | $ 87.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of convertible notes |  |  |  |  |  |  |  |  |  |  |  | Aug. 26, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Mar. 01, 2014 |  |  |  |  |  |  |  |  | Aug. 26, 2010 | Aug. 26, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading price of share |  |  |  |  | $ 1.25 |  |  |  |  |  | $ 1.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense to equity |  |  | 24,000 | 52,000 |  |  |  |  |  |  |  | 24,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000 | 232,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued on warrant exercise | 390,672 | 792,086 |  |  |  |  |  |  |  | 792,086 | 1,235,636 | 348,464 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercise price on repricing and debt extension | $ 0.88 | $ 0.88 |  |  |  |  |  |  |  |  | $ 0.88 | $ 0.88 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 698,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued value |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Exercise price of the warrants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column A + Details
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- Definition The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20 -Article 5 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585 + Details
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