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Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Accumulated Other Comprehensive Loss [Abstract]    
Net unrealized (losses) gains on debt securities $ 290 $ (1,100)
Tax effect (61) 230
Net of tax amount 229 (870)
Accumulated pension adjustment (6,975) (6,975)
Tax effect 1,465 1,465
Net of tax amount (5,510) (5,510)
Total accumulated other comprehensive loss $ (5,281) $ (6,380)