Consolidated Statements of Income and Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Income and Comprehensive Income [Abstract]
Unrealized gains (losses) on available-for-sale securities, tax effect	$ 373	$ (919)
Change in defined benefit plan unrecognized net (loss) gain, , tax effect	(213)	128
Amortization of net loss included in net periodic pension cost, tax effect	$ 15	$ 37

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Amount of tax (expense) benefit, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans, attributable to parent entity.

+ References

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for actuarial gain (loss) related to pension and other postretirement benefit plans.

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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