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Non-marketable Equity Securities (Details) (USD $)
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Non-marketable Equity Securities      
Cost-method investments $ 4,550,796   $ 5,283,254
Equity Method Investment, Other than Temporary Impairment 0 39,185  
FHLB Stock
     
Non-marketable Equity Securities      
Cost-method investments 3,778,000    
Investments in Various Trust and Financial Companies
     
Non-marketable Equity Securities      
Cost-method investments $ 772,796