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Allowance for Loan Losses (Details 2) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Impaired loans by class
Recorded Investment	$ 3,053,000	$ 3,870,000
Related Allowance	891,000	968,000
Unpaid Principal Balance	3,260,000	4,844,000
Commercial loans secured by real estate [Member]
Impaired loans by class
Recorded Investment	3,053,000	3,870,000
Unpaid Principal Balance	3,260,000	4,844,000
Impaired Loans with Specific Allowance [Member]
Impaired loans by class
Recorded Investment	2,553,000	2,836,000
Related Allowance	891,000	968,000
Impaired Loans with Specific Allowance [Member] | Commercial loans secured by real estate [Member]
Impaired loans by class
Recorded Investment	2,553,000	2,836,000
Related Allowance	891,000	968,000
Impaired Loans with No Specific Allowance [Member]
Impaired loans by class
Recorded Investment	500,000	1,034,000
Impaired Loans with No Specific Allowance [Member] | Commercial loans secured by real estate [Member]
Impaired loans by class
Recorded Investment	$ 500,000	$ 1,034,000

X

- Definition

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 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953550-111524

+ Details

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

X

- Details

Name:	us-gaap_ImpairedFinancingReceivableRecordedInvestmentAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of allowance for credit losses related to recorded investment.

+ 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 (a)(3)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

+ Details

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

X

- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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 (a)(4)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524

+ Details

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