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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)
 12 Months Ended
Dec. 31, 2017
ACCUMULATED OTHER COMPREHENSIVE LOSS  
Schedule of accumulated other comprehensive loss
    Pension
Adjustment		     Unrealized
Loss on
Securities		     Total  
(in thousands)                        
Balance at December 31, 2015   $ (1,899 )   $ (2 )   $ (1,901 )
Change during 2016:                        
Before-tax amount     (474 )     (83 )     (557 )
Tax benefit     168       29       197  
Reclassification adjustment, net of taxes                        
Amortization of net loss     54       —       54  
Net realized loss     —       25       25  
Total activity in 2016     (252 )     (29 )     (281 )
Balance at December 31, 2016   $ (2,151 )   $ (31 )   $ (2,182 )
Change during 2017:                        
Before-tax amount     241       9       250  
Tax expense     (85 )     (3 )     (88 )
Reclassification adjustment, net of taxes                        
Amortization of net loss     59       —       59  
Net realized gain     —       (19 )     (19 )
Total activity in 2017     215       (13 )     202  
Balance at December 31, 2017   $ (1,936 )   $ (44 )   $ (1,980 )