Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Pension premiums	$ 2,094	$ 2,148
Allowance for loan and lease losses	5,222	4,826
Non accrued interest	34
Deferred compensation	950	956
Litigation accrual	61	204
Loss on investment in tax credit	636	452
Stock options granted	169	134
Net operating loss carryforward		62
Historic tax credit carryforward	786	980
Leases	157	156
Net unrealized losses on securities	224
Gross deferred tax assets	10,333	9,918
Deferred tax liabilities:
Depreciation and amortization	2,071	1,806
Prepaid expenses	476	459
Net unrealized gains on securities		291
Mortgage servicing asset	200	212
Gross deferred tax liabilities	2,747	2,768
Valuation allowance	(276)	(293)
Net deferred tax asset	$ 7,310	$ 6,857