Investment Securities Available-for-Sale (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Summary of investment securities
Available-for-sale Securities, Amortized Cost	$ 177,990	$ 187,232
Available-for-sale Securities ,Gross Unrealized Gains	4,032	4,381
Available-for-sale Securities, Gross Unrealized Losses	6,013	6,967
Available-for-sale securities, Fair value Disclosure	176,009	184,646
U.S.Treasury securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	111	113
Available-for-sale Securities ,Gross Unrealized Gains	10	10
Available-for-sale securities, Fair value Disclosure	121	123
U.S. Government agencies and corporations
Summary of investment securities
Available-for-sale Securities, Amortized Cost	4,987	8,038
Available-for-sale Securities ,Gross Unrealized Gains	9	27
Available-for-sale securities, Fair value Disclosure	4,996	8,065
Obligations of states and political subdivisions
Summary of investment securities
Available-for-sale Securities, Amortized Cost	40,323	40,374
Available-for-sale Securities ,Gross Unrealized Gains	1,796	1,973
Available-for-sale Securities, Gross Unrealized Losses	85	31
Available-for-sale securities, Fair value Disclosure	42,034	42,316
U.S. Government-sponsored mortgage-backed securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	87,429	90,858
Available-for-sale Securities ,Gross Unrealized Gains	1,894	2,071
Available-for-sale Securities, Gross Unrealized Losses	669	590
Available-for-sale securities, Fair value Disclosure	88,654	92,339
U.S. Government-sponsored collateralized mortgage obligations
Summary of investment securities
Available-for-sale Securities, Amortized Cost	28,206	30,917
Available-for-sale Securities ,Gross Unrealized Gains	323	300
Available-for-sale Securities, Gross Unrealized Losses	60	75
Available-for-sale securities, Fair value Disclosure	28,469	31,142
Trust preferred securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	13,885	13,883
Available-for-sale Securities, Gross Unrealized Losses	5,199	6,271
Available-for-sale securities, Fair value Disclosure	8,686	7,612
Total debt securities
Summary of investment securities
Available-for-sale Securities, Amortized Cost	174,941	184,183
Available-for-sale Securities ,Gross Unrealized Gains	4,032	4,381
Available-for-sale Securities, Gross Unrealized Losses	6,013	6,967
Available-for-sale securities, Fair value Disclosure	172,960	181,597
Federal Home Loan Bank (FHLB) stock
Summary of investment securities
Available-for-sale Securities, Amortized Cost	2,823	2,823
Available-for-sale securities, Fair value Disclosure	2,823	2,823
Federal Reserve Bank (FRB) stock
Summary of investment securities
Available-for-sale Securities, Amortized Cost	226	226
Available-for-sale securities, Fair value Disclosure	226	226
Total regulatory stock
Summary of investment securities
Available-for-sale Securities, Amortized Cost	3,049	3,049
Available-for-sale securities, Fair value Disclosure	$ 3,049	$ 3,049

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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