Retirement Benefits

3 Months Ended

Mar. 31, 2013

Retirement Benefits [Abstract]

Retirement Benefits

3.Retirement Benefits

The components of net periodic benefit cost related to the non-contributory, defined benefit pension plan for the three month period ended March 31 were as follows:

	Three Months Ended March 31,
In thousands	2013			2012
Service cost	$	194		$	163
Interest cost	223			231
Expected return on plan assets	(489		)	(443		)
Amortization of net loss	163			153
Amortization of transition obligation	—			2
Amortization of prior service cost	10			10
Net Periodic Benefit Cost	$	101		$	116

The Corporation previously disclosed in its consolidated financial statements for the year ended December 31, 2012, that it had not yet determined the amount the Bank plans on contributing to the Plan in 2013. As of March 31, 2013, this contribution amount has still not been determined. Effective April 1, 2012, no inactive or former participant in the Plan will be eligible to again participate in the Plan, and no employee hired after March 31, 2012, will be eligible to participate in the Plan. As of the last annual census, ACNB Bank had a combined 368 active, vested terminated, and retired persons in the Plan. There were 11 new hires in the first quarter of 2012 that are not enrolled in the Plan, but will be upon meeting the eligibility requirements.