Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]
Net income	$ 4,210	$ 4,274	$ 8,361	$ 8,449
Other comprehensive income (loss):
Unrealized gains (losses) on securities available for sale	(7,299)	1,285	(8,181)	608
Income tax benefit (expense)	2,554	(450)	2,863	(213)
Reclassification adjustment for (gains) on securities	(1)	(160)	(199)	(160)
Income tax expense	1	56	70	56
Other comprehensive income (loss)	(4,745)	731	(5,447)	291
Comprehensive income (loss)	$ (535)	$ 5,005	$ 2,914	$ 8,740

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References+ Details

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

+ References

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+ Details

- Definition

Before tax amount of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References

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+ Details

- Definition

Tax effect of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References+ Details

- Definition

Before tax and reclassification adjustments amount of unrealized holding gain (loss) and transfers on available-for-sale securities.

+ References

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+ Details

- Definition

Tax effect of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities.

+ References+ Details