Annual report pursuant to Section 13 and 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 $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Warrant Liabilities [Member]
   
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance at January 1 $ 2,842,065 $ 868,725
Additions 2,564,002 2,637,216
Unrealized gains (losses) 1,365,798 (663,876)
Unrealized gains on expiration (144)  
Transfers out of level 3 (1,737,663)  
Balance at June 30 $ 5,034,058 $ 2,842,065