Loans and Allowance for Credit Losses (Loans by Class of Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Loans and Leases Receivable Disclosure [Line Items]
Loans	$ 860,553	$ 795,114
Allowance for credit losses	(8,614)	(8,316)
Loans, net	851,939	786,798
Commercial and Residential Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	79,205	85,632
Allowance for credit losses	(2,018)	(1,646)
Residential Portfolio Segment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	324,473	307,063
Allowance for credit losses	(2,080)	(2,181)
Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	378,806	330,253
Allowance for credit losses	(3,187)	(2,999)
Commercial Portfolio Segment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	70,920	64,911
Allowance for credit losses	(917)	(558)
Consumer Portfolio Segment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Loans	7,149	7,255
Allowance for credit losses	$ (154)	$ (156)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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