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Note 5 - Other Real Estate Owned (Tables)
 9 Months Ended
Sep. 30, 2017
Notes Tables  
Other Real Estate Assets Acquired in Foreclosure Roll Forward [Table Text Block]
   
September 30
, 2017
  
   
Bank
    
ALC
    
Total
  
   
(Dollars in Thousands)
  
Beginning balance
   $
4,353
     $
505
     $
4,858
  
Transfers from loans
    
—
      
87
      
87
  
Sales proceeds
    
(649
)
    
(199
)
    
(848
)
Gross gains
    
14
      
—
      
14
  
Gross losses
    
(20
)
    
(101
)
    
(121
)
Net gains (losses)
    
(6
)
    
(101
)
    
(107
)
Impairment
    
(171
)
    
—
 
    
(171
)
Ending balance
   $
3,527
     $
292
     $
3,819
  
   
September 30
, 2016
  
   
Bank
    
ALC
    
Total
  
   
(Dollars in Thousands)
  
Beginning balance
   $
5,327
     $
711
     $
6,038
  
Transfers from loans
    
255
      
149
      
404
  
Sales proceeds
    
(655
)
    
(259
)
    
(914
)
Gross gains
    
—
      
27
      
27
  
Gross losses
    
(40
)
    
(73
)
    
(113
)
Net gains (losses)
    
(40
)
    
(46
)
    
(86
)
Impairment
    
—
      
(51
)
    
(51
)
Ending balance
   $
4,887
     $
504
     $
5,391