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Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Available-for-sale securities, Amortized Cost	$ 139,303	$ 142,333
Available-for-sale securities, Gross Unrealized Gains	3,113	3,392
Available-for-sale securities, Gross Unrealized Losses	178	217
Available-for-sale securities, Estimated Fair Value	142,238	145,508
Held-to-maturity securities, Amortized Cost	2,594	2,657
Held-to-maturity securities, Gross Unrealized Gains	226	227
Held-to-maturity securities, Gross Unrealized Losses	0	0
Held-to-maturity securities, Estimated Fair Value	2,820	2,884
US Government Corporations and Agencies Securities [Member]
Available-for-sale securities, Amortized Cost	37,629	35,213
Available-for-sale securities, Gross Unrealized Gains	828	903
Available-for-sale securities, Gross Unrealized Losses	4	9
Available-for-sale securities, Estimated Fair Value	38,453	36,107
Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, Amortized Cost	101,074	106,524
Available-for-sale securities, Gross Unrealized Gains	2,261	2,464
Available-for-sale securities, Gross Unrealized Losses	174	208
Available-for-sale securities, Estimated Fair Value	103,161	108,780
Equity Securities [Member]
Available-for-sale securities, Amortized Cost	600	596
Available-for-sale securities, Gross Unrealized Gains	24	25
Available-for-sale securities, Gross Unrealized Losses	0	0
Available-for-sale securities, Estimated Fair Value	624	621
Held-to-maturity securities, Amortized Cost	0
Held-to-maturity securities, Estimated Fair Value	$ 0

X

- Definition

This item represents the cost of debt 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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- Definition

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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-Publisher FASB

-Name Accounting Standards Codification

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As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss.

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