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Note 13 - Stock Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   
Options
Outstanding
    
Weighted
Average
Exercise
Price
    
Aggregate
Intrinsic
Value
(1)
    
Weighted
Average
Contractual
Term
(years)
  
Balance at December 31, 2015
    
546,460
     $
8.62
      
 
      
 
  
Granted
    
–
      
–
      
 
      
 
  
Exercised
    
–
      
–
      
 
      
 
  
Expired
    
(339,460
 )    
9.13
      
 
      
 
  
Forfeited
    
(6,000
 )    
6.90
      
 
      
 
  
Balance at December 31, 2016
    
201,000
     $
7.80
     $
368,950
      
6.51
  
Exercisable at December 31, 2016
    
109,200
     $
8.56
     $
153,220
      
5.28
  
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]
   
2016
    
2015
  
   
Shares
    
Weighted-
Average
Grant Date
Fair Value
    
Shares
    
Weighted-
Average
Grant Date
Fair Value
  
Nonvested at beginning of year
    
39,352
*
   $
6.00
*
    
39,227
*
   $
5.35
*
Granted
    
11,149
*
    
9.09
*
    
11,404
*
    
7.60
*
Vested
    
(12,167)
*
    
5.63
*
    
(11,279)
*
    
5.34
*
Forfeited
    
(6,788)
*
    
6.99
*
    
–
*
    
–
*
Nonvested at the end of the period
    
31,546
*
   $
7.03
*
    
39,352
*
   $
6.00
*