Other Operating Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
other operating expense components [Line Items]
Travel and Entertainment Expense	$ 3,910	$ 3,309	$ 2,874
General Insurance Expense	3,286	3,396	3,518
Other Banking Expense	1,541	1,035	1,788
Publications and Dues expense	1,028	984	870
Postage Expense	974	967	1,007
Supplies Expense	890	836	1,241
Foreclosed Real Estate Expense	4	227	197
Valuation Allowances and Reserves, Deductions	(24)	(367)	(271)
Other Cost and Expense, Operating	2,960	3,050	3,337
Other Noninterest Expense	$ 14,569	$ 13,437	$ 14,561