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Note 6 - Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Goodwill [Table Text Block]
 
 
Goodwill
 
Balance as of December 31, 2015
   $
—
  
Goodwill as a result of the Merger
    
6,929,258
  
Balance as of December 31, 2016
   $
6,929,258
  
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
   
Acquisition
Date Fair Value
    
Accumulated
Amortization
    
Impairment Upon
Abandonment
    
Carrying Value
at December 31,
2016
  
RES-529
   $
8,639,000
    $
-
    $
-
    $
8,639,000
 
RES-440
    
961,000
     
-
     
(961,000
 )   $
-
 
Total in-process research and development costs (IPR&D)
   $
9,600,000
    $
-
    $
(961,000
 )   $
8,639,000