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Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Accumulated Other Comprehensive Loss [Abstract]    
Net unrealized gains (losses) on securities $ 999 $ (20)
Tax effect (339) 7
Net of tax amount 660 (13)
Accumulated pension adjustment (6,366) (6,366)
Tax effect 2,164 2,164
Net of tax amount (4,202) (4,202)
Total accumulated other comprehensive loss $ (3,542) $ (4,215)