Allowance for Loan and Lease Losses [Abstract]

No definition available.

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- Definition

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

+ 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)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ 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 (g)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

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

+ 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 (g)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ 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 (h)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ 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 (h)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

+ Details

Name:	us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533

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Allowance for Loan Losses and Credit Quality (Allowance for Loan Losses by Impairment Method) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	$ 716		$ 684
Allowance for loan losses, ending balance	8,498	$ 8,297	8,013	$ 7,707	$ 7,550	$ 7,494
Allowance for loan losses, collectively evaluated for impairment	7,782		7,329
Loans receivable:
Loans receivables, individually evaluated for impairment	13,192		10,841
Loans receivables, ending balance	899,661		789,356
Loans receivables, collectively evaluated for impairment	884,714		777,651
Deferred loan costs, net	251		550
Total loans, including deferred loan costs, net	899,912		789,906
Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	1,755		864
Commercial Portfolio Segment [Member] \| Construction [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, ending balance	1,661	1,612	1,703	1,455	1,370	1,204
Allowance for loan losses, collectively evaluated for impairment	1,661		1,703
Loans receivable:
Loans receivables, individually evaluated for impairment	104		232
Loans receivables, ending balance	138,144		136,412
Loans receivables, collectively evaluated for impairment	138,040		136,180
Commercial Portfolio Segment [Member] \| Construction [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	0		0
Commercial Portfolio Segment [Member] \| Commercial Business [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	487		592
Allowance for loan losses, ending balance	1,665	1,675	1,720	1,437	1,822	1,732
Allowance for loan losses, collectively evaluated for impairment	1,178		1,128
Loans receivable:
Loans receivables, individually evaluated for impairment	4,320		4,459
Loans receivables, ending balance	106,358		92,906
Loans receivables, collectively evaluated for impairment	101,735		88,173
Commercial Portfolio Segment [Member] \| Commercial Business [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	303		274
Commercial Portfolio Segment [Member] \| Commercial Real Estate [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	229		92
Allowance for loan losses, ending balance	3,314	3,166	2,949	2,991	2,634	2,574
Allowance for loan losses, collectively evaluated for impairment	3,085		2,857
Loans receivable:
Loans receivables, individually evaluated for impairment	7,234		5,713
Loans receivables, ending balance	378,998		308,924
Loans receivables, collectively evaluated for impairment	370,312		302,621
Commercial Portfolio Segment [Member] \| Commercial Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	1,452		590
Commercial Portfolio Segment [Member] \| Mortgage Warehouse Lines [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, ending balance	920	732	852	902	642	973
Allowance for loan losses, collectively evaluated for impairment	920		852
Loans receivable:
Loans receivables, individually evaluated for impairment	0		0
Loans receivables, ending balance	204,359		189,412
Loans receivables, collectively evaluated for impairment	204,359		189,412
Commercial Portfolio Segment [Member] \| Mortgage Warehouse Lines [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	0		0
Residential Portfolio Segment [Member] \| Residential Real Estate [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, ending balance	462	446	392	385	365	367
Allowance for loan losses, collectively evaluated for impairment	462		392
Loans receivable:
Loans receivables, individually evaluated for impairment	1,123		69
Loans receivables, ending balance	46,048		40,494
Loans receivables, collectively evaluated for impairment	44,925		40,425
Residential Portfolio Segment [Member] \| Residential Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	0		0
Consumer Portfolio Segment [Member] \| Loan to Individuals [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, ending balance	169	129	114	120	122	112
Allowance for loan losses, collectively evaluated for impairment	169		114
Loans receivable:
Loans receivables, individually evaluated for impairment	411		368
Loans receivables, ending balance	25,562		21,025
Loans receivables, collectively evaluated for impairment	25,151		20,657
Consumer Portfolio Segment [Member] \| Loan to Individuals [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	0		0
Consumer Portfolio Segment [Member] \| Other [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, ending balance	0	0	0	0	0	0
Allowance for loan losses, collectively evaluated for impairment	0		0
Loans receivable:
Loans receivables, individually evaluated for impairment	0		0
Loans receivables, ending balance	192		183
Loans receivables, collectively evaluated for impairment	192		183
Consumer Portfolio Segment [Member] \| Other [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	0		0
Unallocated [Member]
Allowance for loan losses:
Allowance for loan losses, individually evaluated for impairment	0		0
Allowance for loan losses, ending balance	307	$ 537	283	$ 417	$ 595	$ 532
Allowance for loan losses, collectively evaluated for impairment	307		283
Loans receivable:
Loans receivables, individually evaluated for impairment	0		0
Loans receivables, ending balance	0		0
Loans receivables, collectively evaluated for impairment	0		0
Unallocated [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan losses:
Allowance for loan losses, ending balance	0		0
Loans receivable:
Loans receivables, ending balance	$ 0		$ 0