Income Taxes (Schedule of Current and Deferred Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Current
Current income tax expense	$ 980	$ 1,769	$ 1,460	$ 3,567
Deferred
Deferred income tax expense (benefit)	(152)	(233)	(99)	(583)
Income tax expense as reported	$ 828	$ 1,536	$ 1,361	$ 2,984
Effective tax rate	26.20%	37.70%	27.70%	37.90%