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Note 5 - Other Real Estate Owned and Repossessions (Tables)
 6 Months Ended
Jun. 30, 2018
Notes Tables  
Other Real Estate Assets Acquired in Foreclosure Roll Forward [Table Text Block]
   
June 30
, 2018
  
   
Bank
    
ALC
    
Total
  
   
(Dollars in Thousands)
  
Beginning balance
   $
3,527
     $
265
     $
3,792
  
Additions
(1)
    
106
      
25
      
131
  
Sales proceeds
    
(1,598
)
    
(43
)
    
(1,641
)
                         
Gross gains
    
121
      
—
      
121
  
Gross losses
    
(45
)
    
(54
)
    
(99
)
Net gains (losses)
    
76
      
(54
)
    
22
  
Impairment
    
(109
)
    
(14
)
    
(123
)
Ending balance
   $
2,002
     $
179
     $
2,181
  
   
June 30
, 2017
  
   
Bank
    
ALC
    
Total
  
   
(Dollars in Thousands)
  
Beginning balance
   $
4,353
     $
505
     $
4,858
  
Additions
(1)
    
—
      
68
      
68
  
Sales proceeds
    
(369
)
    
(125
 )    
(494
)
                         
Gross gains
    
14
      
—
      
14
  
Gross losses
    
(1
)
    
(48
)
    
(49
)
Net gains (losses)
    
13
      
(48
)
    
(35
)
Impairment
    
(46
 )    
—
      
(46
)
Ending balance
   $
3,951
     $
400
     $
4,351