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3. Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Summary Of Significant Accounting Policies Tables  
Diluted earnings per share

As of December 31, 2012, 2011 and 2010, the remaining potentially dilutive common stock equivalents not included in the calculation of diluted earnings per share are as follows:

 

   

December 31, 

2012

   

December 31, 

2011

   

December 31, 

2010

 
Warrants     1,934,667       74,173       503,639  
Convertible preferred stock     1,751,005       1,751,005       1,751,005  
Total possible dilution     3,685,672       1,825,178       2,254,644  
Fair Value Measures
                Input  
                Hierarchy  
Assets:   2012     2011     Level  
   Cash and cash equivalents   $ 1,000,811     $ 5,247     Level I  
   Certificates of deposit   $ 243,616     $ -     Level I  
   Restricted cash   $ 75,251     $ 74,777     Level I