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Note 15 - Stock-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2019
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
    Options Outstanding
    Number
of
Shares		   Weighted–
Average
Exercise
Price		   Weighted–
Average
Remaining
Contractual
Term
(in years)		   Weighted–
Average
Grant–Date
Fair Value		   Aggregate
Intrinsic
Value(1)
Balance at December 31, 2018    
1,121,332
     $
1.52
      
—
     $
0.99
     $
—
  
Options granted    
—
     $
—
      
—
     $
—
     $
—
  
Exercised    
—
     $
—
      
—
     $
—
     $
—
  
Canceled/forfeited    
—
     $
—
      
—
     $
—
     $
—
  
Balance at September 30, 2019    
1,121,332
     $
1.52
      
5.36
     $
0.99
     $
—
  
Vested and exercisable as of September 30, 2019    
1,121,332
     $
1.52
      
5.36
     $
0.99
     $
—
  
Vested and exercisable as of September 30, 2019 and expected to vest thereafter    
1,121,332
     $
1.52
      
5.36
     $
0.99
     $
—
  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   
Three Months Ended
September 30,
  
Nine Months Ended
September 30,
    2019   2018   2019   2018
Selling, general and administrative expense   $
—
     $
16
     $
—
     $
177
  
Total stock-based compensation expense   $
—
     $
16
     $
—
     $
177