Income Taxes Income Taxes (Schedule of Components of Applicable Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 1,410	$ 2,436	$ 4,628	$ 3,315
Current State and Local Tax Expense (Benefit)	228	251	737	388
Current Income Tax Expense (Benefit)	1,638	2,687	5,365	3,703
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	25	(190)	(142)	(333)
Deferred State and Local Income Tax Expense (Benefit)	4	(17)	(22)	(31)
Deferred Income Tax Expense (Benefit)	29	(207)	(164)	(364)
Income Tax Expense (Benefit)	$ 1,667	$ 2,480	$ 5,201	$ 3,339