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Fair value measurements (Tables)
6 Months Ended
Jun. 30, 2012
Fair Value Disclosures [Abstract]  
Fair Value, Asset and Liabilities Measured On Recurring and Nonrecurring Basis [Table Text Block]

 

The following table presents the Company’s fair value hierarchy for assets and liabilities measured at fair value as of June 30, 2012 and December 31, 2011:

 

    June 30, 2012  
    Level 1     Level 2     Level 3     Total  
Assets:                                
Recurring                                
Cash equivalents   $ 7,579,819     $ -     $ -     $ 7,579,819  
Marketable securities     8,548,469       -       -       8,548,469  
Total Recurring   $ 16,128,288     $ -     $ -     $ 16,128,288  
Nonrecurring                                
Investment in affiliate   $ -     $ -     $ 6,342,459     $ 6,342,459  

 

 

    December 31, 2011  
    Level 1     Level 2     Level 3     Total  
Assets:                                
Recurring                                
Cash equivalents   $ 16,177,462     $ -     $ -     $ 16,177,462  
Restricted cash     7,500,000       -       -       7,500,000  
Marketable securities     8,496,372       -       -       8,496,372  
Total Recurring   $ 32,173,834     $ -     $ -     $ 32,173,834  
Nonrecurring                                
Investment in affiliate   $ -     $ -     $ 6,634,598     $ 6,634,598
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

A reconciliation of the beginning and ending balances for Level 3 investments for the six months ended June 30, 2012:

 

Balance as of December 31, 2011   $ 6,634,598  
Equity in earnings of OC-BVI     101,761  
Distribution of earnings from OC-BVI     (393,900 )
Balance as of June 30, 2012   $ 6,342,459