Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Unrealized gains on securities available-for-sale
Unrealized holding gains arising during the year, income tax (expense) benefit	$ 576	$ 1,077	$ 438	$ 1,123
Reclassification Adjustment For Gain On Liquidation Of Equity Security Included In Securities Available For Sale Income Tax Expense	$ 46	$ 20	$ 46	$ 34