Loans Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	$ 16,038	$ 15,570
Charge-offs	(216)	(290)
Recoveries	64	70
Provision	(401)	(275)
Allowance for Loan Losses, Ending Balance	16,287	15,625
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	260	149	$ 0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	16,027	15,476	16,038
Ending Loan Balance - Individually Evaluated for Impairment	4,835	4,354	3,286
Ending Loan Balance - Collectively Evaluated for Impairment	1,617,893	1,430,440	1,570,666
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,827	2,100
Charge-offs	(40)	(16)
Recoveries	12	7
Provision	(362)	(72)
Allowance for Loan Losses, Ending Balance	1,437	2,163
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	1,437	2,163	1,827
Ending Loan Balance - Individually Evaluated for Impairment	0	459	155
Ending Loan Balance - Collectively Evaluated for Impairment	106,077	99,451	102,432
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	4,520	4,128
Charge-offs	0	0
Recoveries	0	0
Provision	(430)	295
Allowance for Loan Losses, Ending Balance	4,950	3,833
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	260	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	4,690	3,833	4,520
Ending Loan Balance - Individually Evaluated for Impairment	4,074	1,492	2,372
Ending Loan Balance - Collectively Evaluated for Impairment	399,771	337,795	382,567
Consumer Loans Financing [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	5,554	5,210
Charge-offs	(160)	(185)
Recoveries	52	63
Provision	(466)	(179)
Allowance for Loan Losses, Ending Balance	5,912	5,267
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	5,912	5,267	5,554
Ending Loan Balance - Individually Evaluated for Impairment	119	107	114
Ending Loan Balance - Collectively Evaluated for Impairment	489,390	440,795	464,409
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	3,790	3,369
Charge-offs	(16)	(89)
Recoveries	0	0
Provision	(24)	(349)
Allowance for Loan Losses, Ending Balance	3,798	3,629
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	149	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	3,798	3,480	3,790
Ending Loan Balance - Individually Evaluated for Impairment	642	2,296	645
Ending Loan Balance - Collectively Evaluated for Impairment	622,655	552,399	621,258
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	347	763
Charge-offs	0	0
Recoveries	0	0
Provision	(157)	(30)
Allowance for Loan Losses, Ending Balance	190	733
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	0	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	190	733	347
Ending Loan Balance - Individually Evaluated for Impairment	0	0	0
Ending Loan Balance - Collectively Evaluated for Impairment	$ 0	$ 0	$ 0

No definition available.

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

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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

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

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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

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

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

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ 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)(2)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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