Income Tax (Reconciliation of Income Tax Expense at Federal Statutory Rate to Actual Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of federal statutory to actual tax expense
Federal statutory income tax at 34%	$ 5,721	$ 4,897	$ 4,423
Other than temporary impairment		(615)
State taxes	145	145	109
Low income housing credits	(96)	(107)	(159)
Tax-exempt income	(1,111)	(818)	(725)
Other	(81)	364	488
Income Tax Expense (Benefit), Total	$ 4,578	$ 3,866	$ 4,136
Effective tax rate	27.21%	25.93%	30.59%
Federal statutory income tax rate	34.00%	34.00%	34.00%