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Non-marketable Equity Securities (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2011
Mar. 31, 2011
Jun. 30, 2011
SecuritiesPositions
Jun. 30, 2012
Dec. 31, 2011
Non-marketable Equity Securities          
Cost-method investments       $ 7,256,499 $ 8,771,278
Other than temporary impairment 20,000 22,154      
Cost-Method Investments, Number of Investments Sold     1    
Realized losses from sale of investments     79,910    
FHLB Stock
         
Non-marketable Equity Securities          
Cost-method investments       4,629,600  
Investments in Various Trust and Financial Companies
         
Non-marketable Equity Securities          
Cost-method investments       $ 2,626,899