Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Reconciliation Of Changes In The Fair Value Of Liabilities) (Details)

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Fair Value Measurements (Reconciliation Of Changes In The Fair Value Of Liabilities) (Details) (Warrant Liabilities [Member], USD $)
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Warrant Liabilities [Member]
   
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance at January 1 $ 5,034,058 $ 2,842,065
Additions 3,691,429  
Unrealized losses, net 7,995,159 837,754
Transfers out of level 3 (10,137,243) (16,820)
Balance at June 30 $ 6,583,403 $ 3,662,999