Annual report pursuant to Section 13 and 15(d)

Equity (Details)

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Equity (Details) (USD $)
 1 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended
Nov. 30, 2010
Dec. 31, 2012
Dec. 31, 2012
Minimum [Member]
Dec. 31, 2012
Maximum [Member]
Jul. 31, 2010
Series BB Warrants [Member]
Dec. 31, 2012
Series BB Warrants [Member]
Dec. 31, 2010
Series V Warrants [Member]
Dec. 31, 2011
Series Z Warrants [Member]
Dec. 31, 2010
Series Z Warrants [Member]
Dec. 31, 2012
Series W Warrants [Member]
Mar. 31, 2010
Fusion Capital [Member]
Class of Stock [Line Items]                      
Shares issued during the period pursuant to stock purchase agreement                     540,541
Proceeds from issuance of equity $ 6,000,000                   $ 1,000,000
Shares issued during period as additional commitment fee                     120,000
Warrants outstanding   11,530,877       300,000          
Warrants, exercise price   $ 0.68 $ 0.46 $ 2.375 $ 2.0 $ 2.0          
Warrants, weighted average exercise price   $ 0.68                  
Warrants exercised             120,000 60,000 60,000 6,000,000  
Issued stock upon exercise of warrants, net, shares             120,000   37,778 6,000,000  
Proceeds from warrant exercises             $ 37,200     $ 1,920,000  
Warrants issued during period         300,000            
Common stock reserved for future issuance   38,713,946