Income Taxes (Reconciliation Income Tax Expense And Statutory Income Tax Rates) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Amount
Computed tax at applicable statutory rate	$ 8,857	$ 8,048	$ 5,612
Tax-exempt interest and dividends, net	(1,080)	(1,047)	(996)
State income taxes, net of Federal income tax benefit	405	331	245
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	108	0	0
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount	(55)	0	0
Other, net	(227)	(439)	(183)
Applicable income taxes	$ 8,008	$ 6,893	$ 4,678
Percent
Computed tax at applicable statutory rate	35.00%	35.00%	35.00%
Tax-exempt interest and dividends, net	(4.00%)	(4.00%)	(6.00%)
State income taxes, net of Federal income tax benefit	2.00%	1.00%	1.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent	0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent	0.00%	0.00%	0.00%
Other, net	(1.00%)	(2.00%)	(1.00%)
Applicable income taxes	32.00%	30.00%	29.00%