Allowance for Loan Losses - Individual Evaluation of Impaired Loans and Related Allowance (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable Modifications [Line Items]
Unpaid Principal Balance, With No Allowance Recorded	$ 8,994	$ 13,809
Recorded Investment, With No Allowance Recorded	8,994	11,688
Unpaid Principal Balance, With an Allowance Recorded		590
Recorded Investment, With an Allowance Recorded		350
Related Allowance, With an Allowance Recorded		30
Residential Properties
Financing Receivable Modifications [Line Items]
Unpaid Principal Balance, With No Allowance Recorded	6,093
Recorded Investment, With No Allowance Recorded	6,093
Commercial Real Estate
Financing Receivable Modifications [Line Items]
Unpaid Principal Balance, With No Allowance Recorded	2,148	5,925
Recorded Investment, With No Allowance Recorded	2,148	5,925
Unpaid Principal Balance, With an Allowance Recorded		590
Recorded Investment, With an Allowance Recorded		350
Related Allowance, With an Allowance Recorded		30
Commercial and Industrial Loans
Financing Receivable Modifications [Line Items]
Unpaid Principal Balance, With No Allowance Recorded	753	7,770
Recorded Investment, With No Allowance Recorded	$ 753	5,687
Consumer Loans
Financing Receivable Modifications [Line Items]
Unpaid Principal Balance, With No Allowance Recorded		114
Recorded Investment, With No Allowance Recorded		$ 76

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953550-111524

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- Definition

Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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