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Note 13 - Fair Value Measurement (Tables)
3 Months Ended
Mar. 31, 2014
Fair Value Disclosures [Abstract]  
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
   

March 31, 2014

 
   

Fair Value Measurements Using

   

Assets at

 
   

Level 1

   

Level 2

   

Level 3

   

Fair Value

 
                                 

Derivative instrument liability

  $     $ 905,951     $     $ 905,951  

Total Liabilities

  $     $ 905,951     $     $ 905,951  
   

December 31, 2012

 
   

Fair Value Measurements Using

   

Assets at

 
   

Level 1

   

Level 2

   

Level 3

   

Fair Value

 
                                 

Derivative instrument liability

  $     $ 491,098     $     $ 491,098  

Total Liabilities

  $     $ 491,098     $     $ 491,098