Securities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Available for sale securities
Amortized Cost	$ 200,733	$ 196,357
Gross Unrealized Gains	9,860	8,416
Gross Unrealized Losses	(249)	(140)
Total securities available for sale, Fair Value	210,344	204,633
U.S. Treasury securities and obligations of U.S. government agencies [Member]
Available for sale securities
Amortized Cost	52,482	49,305
Gross Unrealized Gains	381	399
Total securities available for sale, Fair Value	52,863	49,704
Obligations of states and political subdivisions [Member]
Available for sale securities
Amortized Cost	72,576	61,508
Gross Unrealized Gains	7,112	5,240
Gross Unrealized Losses	(2)	(12)
Total securities available for sale, Fair Value	79,686	66,736
Mortgage-backed securities in government sponsored entities [Member]
Available for sale securities
Amortized Cost	75,194	85,063
Gross Unrealized Gains	2,367	2,582
Gross Unrealized Losses	(222)	(128)
Total securities available for sale, Fair Value	77,339	87,518
Total debt securities [Member]
Available for sale securities
Amortized Cost	200,252	195,876
Gross Unrealized Gains	9,860	8,221
Gross Unrealized Losses	(224)	(140)
Total securities available for sale, Fair Value	209,888	203,957
Equity securities in financial institutions [Member]
Available for sale securities
Amortized Cost	481	481
Gross Unrealized Gains		195
Gross Unrealized Losses	(25)
Total securities available for sale, Fair Value	$ 456	$ 676

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

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