Loans (Impaired Loans) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Related Allowance	$ 15		$ 16
Total, recorded investment	3,236		3,423
Total, unpaid principal balance	3,358		3,523
Total, average recorded investment	3,278	$ 2,195
Total, interest income recognized	11	12
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment with no related allowance recorded	15		22
Unpaid principal balance with no related allowance recorded	15		22
Average recorded investment with no related allowance recorded	17	99
Interest income recognized with no related allowance recorded		1
Total, recorded investment	15		22
Total, unpaid principal balance	15		22
Total, average recorded investment	17	99
Total, interest income recognized		1
Commercial Mortgages [Member] \| Owner-occupied Loan [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment with no related allowance recorded	519		520
Unpaid principal balance with no related allowance recorded	602		604
Average recorded investment with no related allowance recorded	519	552
Interest income recognized with no related allowance recorded	8	6
Total, recorded investment	519		520
Total, unpaid principal balance	602		604
Total, average recorded investment	519	552
Total, interest income recognized	8	6
Residential Mortgages [Member] \| Closed-end [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment with no related allowance recorded	1,538		1,561
Unpaid principal balance with no related allowance recorded	1,557		1,573
Related Allowance	15		16
Average recorded investment with no related allowance recorded	1,546	1,141
Interest income recognized with no related allowance recorded	1	1
Recorded investment with an allowance recorded	154		253
Unpaid principal balance with an allowance recorded	154		253
Average recorded investment with an allowance recorded	155	286
Interest income recognized with an allowance recorded	2	3
Total, recorded investment	1,692		1,814
Total, unpaid principal balance	1,711		1,826
Total, average recorded investment	1,701	1,427
Total, interest income recognized	3	4
Residential Mortgages [Member] \| Revolving Home Equity [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment with no related allowance recorded	714		743
Unpaid principal balance with no related allowance recorded	734		747
Average recorded investment with no related allowance recorded	729
Total, recorded investment	714		743
Total, unpaid principal balance	734		747
Total, average recorded investment	729
Consumer And Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded investment with no related allowance recorded	296		324
Unpaid principal balance with no related allowance recorded	296		324
Average recorded investment with no related allowance recorded	312	117
Interest income recognized with no related allowance recorded		1
Total, recorded investment	296		324
Total, unpaid principal balance	296		$ 324
Total, average recorded investment	$ 312	117
Total, interest income recognized		$ 1

Impaired Financing Receivable, with No Related Allowance, Interest Income (Reversal), Accrual Method

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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- Definition

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+ References

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- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

+ References

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- Definition

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+ References

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