Income Taxes (Reconciliation Income Tax Expense And Statutory Income Tax Rates) (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 22, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Amount
Computed tax at applicable statutory rate		$ 7,370	$ 7,553	$ 8,857
Tax-exempt interest and dividends, net		(1,011)	(1,569)	(1,080)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount		0	0	108
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount		(286)	(247)	(55)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount		0	3,461	0
State income taxes, net of Federal income tax benefit		734	354	405
Other, net		217	112	(227)
Applicable income taxes		$ 7,024	$ 9,664	$ 8,008
Percent
Computed tax at applicable statutory rate	35.00%	21.00%	35.00%	35.00%
Tax-exempt interest and dividends, net		(3.00%)	(7.00%)	(4.00%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent		0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent		(1.00%)	(1.00%)	0.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent		0.00%	16.00%	0.00%
State income taxes, net of Federal income tax benefit		2.00%	2.00%	2.00%
Other, net		1.00%	0.00%	(1.00%)
Applicable income taxes		20.00%	45.00%	32.00%