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Income Taxes (Net Deferred Tax Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Allowance for loan losses	$ 8,550	$ 8,741
Deferred compensation	1,771	748
Investment in limited partnerships	660	599
SERP agreements	417	320
Interest on nonaccrual loans	106	305
Share-based compensation	541	464
Net unrealized loss on securities available for sale	2,848	1,334
Other	138	66
Gross deferred tax assets	15,031	12,577
REIT dividend		9,412
Prepaid expenses	583	720
Prepaid pension costs	1,415	3,255
Intangible assets	2,581	2,594
Depreciation and amortization	2,096	2,023
Loan servicing assets	258	250
Other	240	102
Gross deferred tax liabilities	7,173	18,356
Net deferred tax asset (liability)	$ 7,858
Net deferred tax asset (liability)		$ (5,779)

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