Loans and the Allowance for Loan Losses (Analysis of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
No Related Allowance: Recorded Invesment	$ 11,113		$ 12,909
No Related Allowance: Unpaid Principal Balance	11,889		13,352
With An Allowance Recorded: Recorded Investment	4,333		5,016
With An Allowance Recorded: Unpaid Principal Balance	4,333		5,016
With An Allowance Recorded: Related Allowance	227		415
Total Impaired: Recorded Investment	15,446		17,925
Total Impaired: Unpaid Principal Balance	16,222		18,368
Total Impaired: Related Allowance	227		415
No Related Allowance: Average Recorded Investment	11,324	10,232
No Related Allowance: Interest Income Recognized	112	134
With An Allowance Recorded: Average Recorded Investment	4,337	5,429
With An Allowance Recorded: Interest Income Recognized	53	44
Total Impaired: Average Recorded Investment	15,661	15,661
Total Impaired: Interest Income Recognized	165	178
Commercial and industrial [Member]
Financing Receivable, Impaired [Line Items]
No Related Allowance: Recorded Invesment	642		449
No Related Allowance: Unpaid Principal Balance	975		449
With An Allowance Recorded: Recorded Investment			672
With An Allowance Recorded: Unpaid Principal Balance			672
With An Allowance Recorded: Related Allowance	0		300
Total Impaired: Recorded Investment	642		1,121
Total Impaired: Unpaid Principal Balance	975		1,121
Total Impaired: Related Allowance	0		300
No Related Allowance: Average Recorded Investment	659	726
No Related Allowance: Interest Income Recognized	14	10
Total Impaired: Average Recorded Investment	659	726
Total Impaired: Interest Income Recognized	14	10
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
No Related Allowance: Recorded Invesment	8,244		10,482
No Related Allowance: Unpaid Principal Balance	8,545		10,783
With An Allowance Recorded: Recorded Investment	4,333		4,344
With An Allowance Recorded: Unpaid Principal Balance	4,333		4,344
With An Allowance Recorded: Related Allowance	227		115
Total Impaired: Recorded Investment	12,577		14,826
Total Impaired: Unpaid Principal Balance	12,878		15,127
Total Impaired: Related Allowance	227		115
No Related Allowance: Average Recorded Investment	8,278	9,086
No Related Allowance: Interest Income Recognized	78	119
With An Allowance Recorded: Average Recorded Investment	4,337	4,180
With An Allowance Recorded: Interest Income Recognized	53	34
Total Impaired: Average Recorded Investment	12,615	13,266
Total Impaired: Interest Income Recognized	131	153
Residential mortgage [Member]
Financing Receivable, Impaired [Line Items]
No Related Allowance: Recorded Invesment	2,112		1,858
No Related Allowance: Unpaid Principal Balance	2,254		2,000
With An Allowance Recorded: Related Allowance	0		0
Total Impaired: Recorded Investment	2,112		1,858
Total Impaired: Unpaid Principal Balance	2,254		2,000
Total Impaired: Related Allowance	0		0
No Related Allowance: Average Recorded Investment	2,270	420
No Related Allowance: Interest Income Recognized	19	5
With An Allowance Recorded: Average Recorded Investment	0	1,249
With An Allowance Recorded: Interest Income Recognized	0	10
Total Impaired: Average Recorded Investment	2,270	1,669
Total Impaired: Interest Income Recognized	19	15
Installment [Member]
Financing Receivable, Impaired [Line Items]
No Related Allowance: Recorded Invesment	115		120
No Related Allowance: Unpaid Principal Balance	115		120
With An Allowance Recorded: Related Allowance	0		0
Total Impaired: Recorded Investment	115		120
Total Impaired: Unpaid Principal Balance	115		120
Total Impaired: Related Allowance	0		0
No Related Allowance: Average Recorded Investment	117	0
No Related Allowance: Interest Income Recognized	1	0
Total Impaired: Average Recorded Investment	117	0
Total Impaired: Interest Income Recognized	$ 1	$ 0

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5258-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524

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