Income Taxes Current Income Tax Expense (Benefit), Continuing Operations(Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Tax Expense: Federal	$ 11,142	$ 10,496	$ 8,570
Current Tax Expense: State	917	1,002	1,004
Total Current Tax Expense	12,059	11,498	9,574
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Tax Expense: Federal	(1,453)	(69)	860
Deferred Tax Expense: State	(77)	(214)	176
Total Deferred Tax Expense (Benefit)	(1,530)	(283)	1,036
Income Tax Expense (Benefit), Continuing Operations	$ 10,529	$ 11,215	$ 10,610