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Note 14 - Basic and Diluted Net Loss Per Share (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Years Ended
December 31,
 
 
 
2015
 
 
2014
 
Basic and dilutive numerator:
               
Net loss, as reported
  $ (23,820,675 )   $ (14,352,824 )
Denominator:
               
Weighted-average shares outstanding
    18,614,968       14,299,473  
Net loss per share - basic and diluted
  $ (1.28 )   $ (1.00 )