Allowance for Loan Losses and Credit Quality Disclosure (Allowance for Loan Losses Activity) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 7,302	$ 7,560	$ 7,364	$ 6,925	$ 7,560	$ 6,925
Provision charged (credited) to operations	(100)	(200)	0	500	(300)	500
Loans charged off	(101)	(60)	(26)	(62)
Recoveries of loans charged off	381	2	13	1
Ending Balance	7,482	7,302	7,351	7,364	7,482	7,351
Commercial Portfolio Segment [Member] \| Construction [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	981	1,025	1,117	1,215	1,025	1,215
Provision charged (credited) to operations	(6)	(44)	(27)	(98)
Loans charged off	0	0	0	0
Recoveries of loans charged off	0	0	0	0
Ending Balance	975	981	1,090	1,117	975	1,090
Commercial Portfolio Segment [Member] \| Commercial Business [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,614	2,005	1,761	1,761	2,005	1,761
Provision charged (credited) to operations	(284)	(392)	(81)	62
Loans charged off	(101)	0	(26)	(62)
Recoveries of loans charged off	1	1	5	0
Ending Balance	1,230	1,614	1,659	1,761	1,230	1,659
Commercial Portfolio Segment [Member] \| Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	3,035	3,049	2,389	2,393	3,049	2,393
Provision charged (credited) to operations	(263)	46	49	(4)
Loans charged off	0	(60)	0	0
Recoveries of loans charged off	378	0	7	0
Ending Balance	3,150	3,035	2,445	2,389	3,150	2,445
Commercial Portfolio Segment [Member] \| Mortgage Warehouse Lines [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	867	866	1,048	896	866	896
Provision charged (credited) to operations	323	1	71	152
Loans charged off	0	0	0	0
Recoveries of loans charged off	0	0	0	0
Ending Balance	1,190	867	1,119	1,048	1,190	1,119
Commercial Portfolio Segment [Member] \| Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	209	288	210	197	288	197
Provision charged (credited) to operations	85	(79)	(8)	13
Loans charged off	0	0	0	0
Recoveries of loans charged off	0	0	0	0
Ending Balance	294	209	202	210	294	202
Consumer Portfolio Segment [Member] \| Loan to Individuals [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	114	109	117	129	109	129
Provision charged (credited) to operations	3	4	3	(13)
Loans charged off	0	0	0	0
Recoveries of loans charged off	2	1	1	1
Ending Balance	119	114	121	117	119	121
Consumer Portfolio Segment [Member] \| Other [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	0	0	2	2	0	2
Provision charged (credited) to operations	0	0	(1)	0
Loans charged off	0	0	0	0
Recoveries of loans charged off	0	0	0	0
Ending Balance	0	0	1	2	0	1
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	482	218	720	332	218	332
Provision charged (credited) to operations	42	264	(6)	388
Loans charged off	0	0	0	0
Recoveries of loans charged off	0	0	0	0
Ending Balance	$ 524	$ 482	$ 714	$ 720	$ 524	$ 714

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

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

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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
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

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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.

+ References

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- Definition

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

+ 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)(3)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

Reference 1: 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 2: 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

Reference 3: 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

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