Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details)

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Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Restricted Cash equivalents $ 1,091,801 $ 1,431,765
Marketable Securities 100,000 1,950,000
Total Assets: 1,191,801 3,381,765
Warrant Liabilities 2,842,065 868,725
Level 1 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Restricted Cash equivalents 1,054,301 1,394,265
Marketable Securities 100,000 1,950,000
Total Assets: 1,154,301 3,344,265
Level 2 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Restricted Cash equivalents 37,500 37,500
Total Assets: 37,500 37,500
Level 3 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Warrant Liabilities $ 2,842,065 $ 868,725