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Marketable Securities (Tables)
6 Months Ended
Jun. 30, 2012
Marketable Securities [Abstract]  
Fair value of marketable securities, by type
                         
    Level 1     Level 2     Total  

U.S. Treasury notes and bonds

  $ 1,975,270     $ —       $ 1,975,270  

U.S. Agency issued mortgage-backed securities – variable rate

    —         3,986,942       3,986,942  

U.S. Agency notes and bonds – fixed rate

    —         1,500,383       1,500,383  

SBA loan pools – variable rate

    531,168       1,556,677       2,087,845  

Municipal bonds – VRDN

    8,695,000       —         8,695,000  
   

 

 

   

 

 

   

 

 

 
    $ 11,201,438     $ 7,044,002     $ 18,245,440