Loans Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	$ 20,196	$ 18,586
Charge-offs	(462)	(370)
Recoveries	167	95
Provision	472	746
Allowance for Loan Losses, Ending Balance	20,373	19,057
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	192	$ 4
Allowance for loan losses - Loans Collectively Evaluated for Impairment	20,373	18,865	20,192
Ending Loan Balance - Individually Evaluated for Impairment	2,945	2,959	3,223
Ending Loan Balance - Collectively Evaluated for Impairment	2,232,263	1,990,078	2,192,992
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	1,218	1,873
Charge-offs	(1)	(16)
Recoveries	0	0
Provision	33	311
Allowance for Loan Losses, Ending Balance	1,250	2,168
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	92	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	1,250	2,076	1,218
Ending Loan Balance - Individually Evaluated for Impairment	40	489	430
Ending Loan Balance - Collectively Evaluated for Impairment	133,236	127,185	136,460
Commercial Real Estate Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	5,644	4,504
Charge-offs	(29)	1
Recoveries	0	9
Provision	(26)	(151)
Allowance for Loan Losses, Ending Balance	5,589	4,363
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	42	0
Allowance for loan losses - Loans Collectively Evaluated for Impairment	5,589	4,321	5,644
Ending Loan Balance - Individually Evaluated for Impairment	387	815	793
Ending Loan Balance - Collectively Evaluated for Impairment	493,000	454,243	483,769
Consumer Loans Financing
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	8,882	7,604
Charge-offs	(418)	(347)
Recoveries	167	86
Provision	778	676
Allowance for Loan Losses, Ending Balance	9,409	8,019
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	9,409	8,019	8,882
Ending Loan Balance - Individually Evaluated for Impairment	101	91	101
Ending Loan Balance - Collectively Evaluated for Impairment	746,698	626,549	719,409
Residential
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for Loan Losses, Beginning Balance	4,452	4,605
Charge-offs	(14)	(8)
Recoveries	0	0
Provision	(313)	(90)
Allowance for Loan Losses, Ending Balance	4,125	4,507
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for loan losses - Loans Individually Evaluated for Impairment	0	58	4
Allowance for loan losses - Loans Collectively Evaluated for Impairment	4,125	4,449	4,448
Ending Loan Balance - Individually Evaluated for Impairment	2,417	1,564	1,899
Ending Loan Balance - Collectively Evaluated for Impairment	$ 859,329	$ 782,101	$ 853,354

No definition available.

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- Definition

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

+ References

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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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- Definition

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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