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Securities (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Securities (Textual)
Pledged Assets Separately Reported, Securities Pledged as Collateral, at Fair Value	$ 49,800,000	$ 52,800,000
Securities for Reverse Repurchase Agreements	16,200,000	21,000,000
Available-for-sale Securities, Gross Realized Gains	0	1,900,000
Available-for-sale Securities, Gross Realized Losses	0	20,000
Tax expense for net security gains		640,000
Total fair value of investments	$ 6,024,000	$ 12,666,000
Fair value as a percentage of available-for-sale investment portfolio	6.00%	11.00%

X

- Definition

Percentage of investment in available for sale securities.

+ References

No definition available.

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X

- Definition

Tax expense for net security gains (losses)

+ References

No definition available.

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X

- Definition

This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(1)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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-Name Accounting Standards Codification

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- Definition

The sum of the fair values, as of the date of each statement of financial position presented, of securities that are restricted as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.

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

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X

- Definition

The carrying value of securities purchased to be resold in reverse repurchase transactions as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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