Loans (Analysis of Loan Servicing Rights) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loan Servicing Rights [Roll Forward]
Beginning balance	$ 3,613	$ 3,493	$ 3,348
Loan servicing rights capitalized	905	1,104	1,412
Amortization	(867)	(984)	(1,267)
Decrease in impairment reserve			0
Ending balance	3,651	3,613	3,493
Valuation Allowance [Roll Forward]
Beginning balance	0	0	(1)
Loan servicing rights capitalized	0	0	0
Amortization	0	0	0
Decrease in impairment reserve			1
Ending balance	0	0	0
Total Loan Servicing Rights [Roll Forward]
Beginning Balance	3,613	3,493	3,347
Loan servicing rights capitalized	905	1,104	1,412
Amortization	(867)	(984)	(1,267)
Decrease in impairment reserve			1
Ending balance	$ 3,651	$ 3,613	$ 3,493