Investment Securities (Unrealized Gain (Loss) on Investments) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Schedule of Investments [Line Items]
Amortized Cost	$ 142,435		$ 150,610
Unrealized Gains	3,812		4,281
Unrealized Losses	741		596
Fair Value	145,506	154,295	154,295
U.S. Treasury and U.S. government agencies [Member]
Schedule of Investments [Line Items]
Amortized Cost	16,379	16,394
Unrealized Gains	1,274	1,346
Fair Value	17,653	17,740
Mortgage-backed U.S. government agencies [Member]
Schedule of Investments [Line Items]
Amortized Cost	58,302	66,783
Unrealized Gains	360	393
Unrealized Losses	376	490
Fair Value	58,286	66,686
State and political subdivision obligations [Member]
Schedule of Investments [Line Items]
Amortized Cost	67,354	67,033
Unrealized Gains	2,178	2,542
Unrealized Losses	352	96
Fair Value	69,180	69,479
Equity securities [Member]
Schedule of Investments [Line Items]
Amortized Cost	400	400
Unrealized Losses	13	10
Fair Value	$ 387	$ 390

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

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.

+ References+ Details

- 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.

+ References+ Details