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Accounting Policies (Fair Value of Financial Instruments) (Tables)
9 Months Ended
Sep. 30, 2012
Accounting Policies Fair Value Of Financial Instruments Tables  
Fair Value Measurement (Tables)

The assets measured at fair value on a recurring basis subject to the disclosure requirements of ASC 820 as of September 30, 2012 and December 31, 2011 are as follows:

 

    Carrying value   Active markets
For identical
Assets
  Significant
other
Observable
Inputs
  Significant
Unobservable
Inputs
    2012   (Level 1)   (Level 2)   (Level 3)
Cash and cash equivalents   $ 3,803,966    $ 3,803,966    $   $
Restricted cash   $ 16,410,824    $ 16,410,824    $   $
Warrants   $ 327,763    $   $ 327,763    $
                         
    Carrying value   Active markets
For identical
Assets
  Significant
other
Observable
Inputs
  Significant
Unobservable
Inputs
    2011   (Level 1)   (Level 2)   (Level 3)
Cash and cash equivalents   $ 1,131,109    $ 1,131,109    $   $
Restricted cash   $ 15,507,408    $ 15,507,408    $   $
Warrants   $ 850,841    $   $ 850,841    $