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3. Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
   

December 31, 

2015

   

December 31, 

2014

 
Warrants     250,000       726,917  
Convertible preferred stock     1,751,005       1,751,005  
Total possible dilution     2,001,005       2,477,922  
Fair Value Measures
              Input
              Hierarchy
Assets:   2015     2014   Level
   Cash and cash equivalents   $ 133,543     $ 123,683   Level I
   Certificates of deposit     250,414       249,147   Level I
   Restricted cash     76,012       75,754   Level I
      Total Cash   $ 459,969     $ 448,584