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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Consolidated Statements of Comprehensive Income
SECURITIES: Unrealized losses arising during the period, income taxes	$ (92)	$ (86)
SECURITIES: Reclassification adjustment for net gains included in net income, income taxes	(1)
PENSION: Change in plan assets and benefit obligations, income taxes	$ 57	$ 17

Tax effect of the increase (decrease) in the value of the projected benefit obligation and the (increase) decrease in the value of the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost.

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- 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.

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- Definition

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

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