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Convertible Debt (Details) (USD $)
 6 Months Ended 1 Months Ended 6 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended 1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 16, 2012
Dec. 31, 2011
Senior Convertible Secured Notes- 2007 [Member]
Jun. 30, 2011
Senior Convertible Secured Notes- 2007 [Member]
Sep. 22, 2010
Senior Convertible Secured Notes- 2007 [Member]
Jun. 30, 2011
September 2009 Senior Convertible Secured Notes Financing transaction [Member]
Dec. 15, 2009
September 2009 Senior Convertible Secured Notes Financing transaction [Member]
Jun. 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
Senior Convertible Secured Notes- 2010 [Member]
Jun. 30, 2011
Senior Convertible Secured Notes- 2010 [Member]
Jun. 30, 2010
Senior Convertible Secured Notes- 2010 [Member]
Dec. 31, 2011
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]
Mar. 31, 2011
Senior Convertible Secured Notes- 2011 [Member]
Jun. 30, 2011
Senior Convertible Secured Notes- 2011 [Member]
Dec. 13, 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         84,657,000                 1,750,143     3,700,000        
Debt maturity interest payment         1,054,000   15,000   15,000   28,000 28,000   28,442     130,000        
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%    
Warrants Issued 100,000   200,000       986,983   986,983       1,760,712     49,100 373,730   373,730    
Period of warrants                 3 years               5 years   2 years 6 months    
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                       4,300,000               1,400,000  
Fair value of embedded derivative liability             0   0   0 0     0         6,200,000 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 8,000 515,000                           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                                      
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