Investment Securities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Amortized Cost	$ 245,291	$ 281,012
Gross Unrealized Gains	3,339	7,784
Gross Unrealized Losses	(740)	(1,114)
Fair Value	247,890	287,682
Obligations of U.S. government agencies
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Amortized Cost	4,781	7,307
Gross Unrealized Gains	57	262
Gross Unrealized Losses	(2)	(2)
Fair Value	4,836	7,567
Mortgage-backed securities - U.S. government sponsored entities and agencies
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Amortized Cost	155,391	145,430
Gross Unrealized Gains	983	1,136
Gross Unrealized Losses	(581)	(798)
Fair Value	155,793	145,768
Mortgage-backed securities - Non-agency
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Amortized Cost	23,209	43,402
Gross Unrealized Gains	732	1,578
Gross Unrealized Losses	(15)	(185)
Fair Value	23,926	44,795
State and municipal securities
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Amortized Cost	29,923	64,824
Gross Unrealized Gains	1,169	4,240
Gross Unrealized Losses	(88)	(96)
Fair Value	31,004	68,968
Asset backed securities
Reconciliation of amortized cost to fair value of investment securities reported as available for sale
Amortized Cost	31,987	20,049
Gross Unrealized Gains	398	568
Gross Unrealized Losses	(54)	(33)
Fair Value	$ 32,331	$ 20,584

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