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BRANCH CLOSURES (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2016
USD ($)
item
Dec. 31, 2015
USD ($)
item
Jun. 30, 2014
item
Dec. 31, 2016
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
BRANCH CLOSURES            
Number of branch offices whose closure is approved by the board of directors 3   3      
Number of branch offices to be closed     1      
Severance costs | $   $ 75        
Deposits of three branch offices to be closed | $ $ 53     $ 53   $ 22,000
Severance costs | $       75 $ 25  
Impairment costs for the affected properties | $   $ 175   389 550  
Other costs related to the closing of the branches | $       $ 20 $ 25  
Rushville, Indiana            
BRANCH CLOSURES            
Number of branch offices to be closed   1        
Number of branches at specified location   2        
New Castle, Indiana            
BRANCH CLOSURES            
Number of branch offices to be closed   0        
Number of branches at specified location   2        
Crawfordsville, Indiana            
BRANCH CLOSURES            
Number of branch offices to be closed   1        
Number of branches at specified location   2        
Bourbonnais, Illinois            
BRANCH CLOSURES            
Number of branch offices to be closed   1