Pension plan

9 Months Ended

Sep. 30, 2011

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

Pension plan

Net periodic pension costs consist of the following:

	Three months ended September 30,						Nine months ended September 30,
	2010			2011			2010			2011
Service cost	$	44		$	70		$	133		$	211
Interest cost on projected
benefit obligation	1,006			880			3,019			2,639
Expected return on plan assets	(1,003		)	(1,094		)	(3,012		)	(3,283		)
Net amortization and deferral	328			394			985			1,183
Net periodic pension cost	$	375		$	250		$	1,125		$	750

We are required and expect to make $2.1 million in contributions to our pension plan for 2011. We contributed $1.0 million during the first nine months of 2011 and expect to contribute the remaining $1.1 million during the remainder of 2011.