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Income Taxes (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]    
Current Federal Tax Expense (Benefit) $ 2,782 $ 2,143
Current State and Local Tax Expense (Benefit) 499 498
Current Income Tax Expense (Benefit), Total 3,281 2,641
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]    
Deferred Federal Income Tax Expense (Benefit) 384 464
Deferred State and Local Income Tax Expense (Benefit) (28) (3)
Deferred Income Tax Expense (Benefit), Total 356 461
Income Tax Expense (Benefit), Continuing Operations, Total $ 3,637 $ 3,102