Allowance For Loan Losses And Credit Quality Of Financing Receivables (Allowances Of Loan Losses And Loans Receivable By Class Disaggregated) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 4,976	$ 7,210	$ 6,397
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	365	1,957
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	4,431	4,470
Balance, Loans Receivable	348,063	339,933
Loans Receivable, Individually Evaluated for Impairment	18,522	27,694
Loans Receivable, Collectively Evaluated for Impairment	329,541	312,239
Commercial And Industrial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	271	304	436
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	27	16
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	244	288
Balance, Loans Receivable	16,158	13,711
Loans Receivable, Individually Evaluated for Impairment	27	32
Loans Receivable, Collectively Evaluated for Impairment	16,131	13,679
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	223	294	1,183
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	42	50
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	181	244
Balance, Loans Receivable	7,004	8,520
Loans Receivable, Individually Evaluated for Impairment	2,462	2,458
Loans Receivable, Collectively Evaluated for Impairment	4,542	6,062
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	3,395	4,833	3,760
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	230	1,572
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	3,165	3,261
Balance, Loans Receivable	225,345	216,191
Loans Receivable, Individually Evaluated for Impairment	12,682	22,722
Loans Receivable, Collectively Evaluated for Impairment	212,663	193,469
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	869	987	798
Allowance for Loan Losses, Balance Related to Loans Individually Evaluated for Impairment	66	319
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	803	668
Balance, Loans Receivable	98,301	100,175
Loans Receivable, Individually Evaluated for Impairment	3,351	2,482
Loans Receivable, Collectively Evaluated for Impairment	94,950	97,693
Consumer And Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	38	9	56
Allowance for Loan Losses, Balance Related to Loans Collectively Evaluated for Impairment	38	9
Balance, Loans Receivable	1,255	1,336
Loans Receivable, Collectively Evaluated for Impairment	1,255	1,336
Unallocated Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, Allowance for Loan Losses	$ 180	$ 783	$ 164

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=7512638&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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

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- Definition

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

+ 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 (g)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

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- Definition

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

+ 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 (h)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

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

- Definition

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

+ 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 (h)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

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- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 3

-Article 5

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