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Securities (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Securities (Textual)
Fair value of securities pledged as collateral, to secure public deposits and for other purposes	$ 52,600,000	$ 49,800,000
Fair value of securities delivered for repurchase agreements	16,300,000	16,200,000
Available-for-sale Securities, Gross Realized Gains	20,000	0
Gain on sale reclassification from accumulated other comprehensive income included in gain on sale of securities	20,000
Available-for-sale Securities, Gross Realized Losses	0	0
Tax expense for net security gains	70,000
Total fair value of investments	$ 11,227,000	$ 6,024,000
Fair value as a percentage of available-for-sale investment portfolio	11.40%	6.10%

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- Definition

Percentage of investment in available for sale securities.

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- Definition

Gain on sale reclassification from accumulated other comprehensive income.

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- Definition

Tax expense for net security gains (losses)

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- 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

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- Definition

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

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