Loans - Schedule of Allowance For Loan Losses And Recorded Investment In Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	$ 14,747	$ 15,172
Charge-offs	(260)	(133)
Recoveries	53	26
Provisions	0	0
Allowance for Loan Losses, Ending Balance	14,540	15,065
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	302	$ 0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	14,540	14,763	14,747
Total Loans Receivable	866,990	815,210	852,960
Loans receivables: Ending balance: individually evaluated for impairment	10,853	12,878	10,491
Loans Receivable: Ending balance: collectively evaluated for impairment	856,137	802,332	842,469
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	2,508	2,048
Charge-offs	(64)	(36)
Recoveries	5	23
Provisions	244	135
Allowance for Loan Losses, Ending Balance	2,693	2,170
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,693	2,170	2,508
Total Loans Receivable	127,576	91,294	117,692
Loans receivables: Ending balance: individually evaluated for impairment	1,407	1,659	1,471
Loans Receivable: Ending balance: collectively evaluated for impairment	126,169	89,635	116,221
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	5,216	5,872
Charge-offs	0	0
Recoveries	0	0
Provisions	349	(372)
Allowance for Loan Losses, Ending Balance	5,565	5,500
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	5,565	5,500	5,216
Total Loans Receivable	297,055	286,227	289,899
Loans receivables: Ending balance: individually evaluated for impairment	8,622	9,884	8,185
Loans Receivable: Ending balance: collectively evaluated for impairment	288,433	276,343	281,714
Commercial Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	112	194
Charge-offs	(135)	0
Recoveries	41	0
Provisions	96	(26)
Allowance for Loan Losses, Ending Balance	114	168
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	114	168	112
Total Loans Receivable	15,696	14,580	13,429
Loans receivables: Ending balance: individually evaluated for impairment	374	328	374
Loans Receivable: Ending balance: collectively evaluated for impairment	15,322	14,252	13,055
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	3,349	3,845
Charge-offs	(39)	(76)
Recoveries	3	2
Provisions	(22)	(180)
Allowance for Loan Losses, Ending Balance	3,291	3,591
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	302	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	3,291	3,289	3,349
Total Loans Receivable	352,044	353,730	357,228
Loans receivables: Ending balance: individually evaluated for impairment	450	1,007	461
Loans Receivable: Ending balance: collectively evaluated for impairment	351,594	352,723	356,767
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	619	557
Charge-offs	(9)	0
Recoveries	0	0
Provisions	7	(20)
Allowance for Loan Losses, Ending Balance	617	537
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	617	537	619
Total Loans Receivable	60,272	54,564	60,124
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	60,272	54,564	60,124
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,083	1,050
Charge-offs	(13)	(21)
Recoveries	4	1
Provisions	(24)	0
Allowance for Loan Losses, Ending Balance	1,050	1,030
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	1,050	1,030	1,083
Total Loans Receivable	14,347	14,815	14,588
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	14,347	14,815	14,588
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,860	1,606
Charge-offs	0	0
Recoveries	0	0
Provisions	(650)	463
Allowance for Loan Losses, Ending Balance	1,210	2,069
Allowance for loan losses: Ending balance: individually evaluated for impairment	0	0	0
Allowance for loan losses: Ending balance: collectively evaluated for impairment	1,210	2,069	1,860
Total Loans Receivable	0	0	0
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	$ 0	$ 0	$ 0

Allowance for Loan Losses [Roll Forward]

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- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

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-Publisher FASB
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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

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-Publisher FASB
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The balance of financing receivables that were individually evaluated for impairment.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount of expense related to estimated loss from loan and lease transactions.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 225
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