Defined Benefit Plan (Tables)

3 Months Ended

Mar. 31, 2013

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of components of net periodic pension income

Components of net periodic pension cost are as follows (in thousands):

	Three Months Ended
	March 31,
	2013			2012
Service cost	$	207		$	171
Interest cost	125			166
Expected return on plan assets	(383		)	(357		)
Prior service cost amortization	11			11
Deferred loss amortization	45			55
Net periodic pension cost	$	5		$	46