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Schedule II - Valuation and Qualifying Accounts (Tables)
 12 Months Ended
Dec. 31, 2015
Notes Tables  
Summary of Valuation Allowance [Table Text Block]
   
Balance at
Beginning of
Year
    
Additions Charged
to Expenses/
Other Accounts
    
Net
(Deductions)
Recoveries
  
 
 
Balance at
End of Year
  
Allowance for doubtful accounts
                                
2015
     $--       $--       $--       $--  
2014
     $--       $--       $--       $--  
2013
     $25,106       $--       $25,106       $--  
                                 
Valuation allowance for deferred tax assets
                                
2015
  
 
 $26,694,879    
 
 $5,672,480    
 
 $--    
 
 $32,367,359  
2014
     $21,759,577       $4,935,302       $--       $26,694,879  
2013
     $16,724,700       $5,034,877       $--       $21,759,577