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Loans (Narrative) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2018 USD ($) contract	Sep. 30, 2017 contract	Dec. 31, 2017 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due greater than 90 days and still accruing interest	$ 0		$ 0
Loans held for sale	3,166		2,718
Past Due Loans	$ 5,394		6,522
Number of loans modified as TDR | contract	0	0
Number of loans modified as TDR that defaulted within the previous 12 months | contract	0	0
Greater than 90 Days [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due Loans	$ 8		11
Consumer Overdrafts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due greater than 90 days and still accruing interest	8		11
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans held for sale	3,200		2,700
Past Due Loans	926		1,964
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due Loans	$ 364		$ 100

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Number of financing receivables that have been modified by troubled debt restructurings.

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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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