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Fair Value (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Securities	Dec. 31, 2011 Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of structured pooled trust preferred security for Level 3 assets		1
Impaired loans, principal balance	$ 29,225	$ 26,971
Impaired loans allowance	1,852	1,493
Pooled SBA [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities transferred to the Level 1 Fair value		3,437
Number of Pooled SBA securities, transferred from level 2 to level 1	0	2
Collateral Dependent Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans, principal balance	12,535	22,384
Impaired loans allowance	1,738	1,493
Impaired loans, additional provisions	$ 2,558	$ 583

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Fair value assets level two to level one transfers number.

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- Definition

Impaired financing receivable additional provisions.

+ References

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- Definition

Unrealized loss related to number of structured pool securities.

+ References

No definition available.

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- Definition

Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bb)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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- 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

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- 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

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