BENEFIT PLANS

3 Months Ended

Mar. 31, 2012

BENEFIT PLANS [Abstract]

BENEFIT PLANS

NOTE H:  BENEFIT PLANS

The Company provides a qualified defined benefit pension to eligible employees and retirees, and other post-retirement health and life insurance benefits to certain retirees, an unfunded supplemental pension plan for certain key executives, and an unfunded stock balance plan for certain of its nonemployee directors.  The Company accrues for the estimated cost of these benefits through charges to expense during the years that employees earn these benefits.  The net periodic benefit cost for the three months ended March 31 is as follows:

	Pension Benefits						Post-retirement Benefits
	Three Months Ended						Three Months Ended
	March 31,						March 31,
(000's omitted)	2012			2011			2012			2011
Service cost	$	848		$	686		$	0		$	0
Interest cost		1,098			961			29			38
Expected return on plan assets		(2,299	)		(1,767	)		0			0
Amortization of unrecognized net loss		922			474			3			2
Amortization of prior service cost		(37	)		(37	)		(206	)		(264	)
Net periodic benefit cost	$	532		$	317		$	(174	)	$	(224	)

Effective September 30, 2011, the Wilber National Bank Retirement Plan with $20.5 million in assets was merged into the Community Bank System, Inc. Pension Plan and the combined plan was revalued.