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Note 10 - Stock Options, Incentive Plans, Stock Awards, and Employee Benefit Plan (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
Stock Awards   Shares   Weighted Average
Exercise Price		   Weighted Average
Contractual
Remaining Life		   Aggregate Intrinsic
Value
                 
Outstanding, December 31, 2015    
4,324,102
     $
1.98
      
 
      
 
  
Granted    
-
      
-
      
 
      
 
  
Vested    
696,159
      
-
      
 
      
 
  
Forfeited    
266,667
      
-
      
 
      
 
  
                                 
Outstanding, December 31, 2016    
3,361,276
     $
1.85
      
4.17
     $
-
  
                                 
Expected to Vest after December 31, 2016    
3,361,276
     $
1.85
      
4.17
     $
-