Note 7 - Employee Benefit Plans

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

Note 7.   Employee Benefit Plans

We sponsor defined benefit pension plans covering substantially all U.S. employees.  Net periodic pension cost for the plans consisted of the following for the three and six months ended June 30, 2014 and 2013 (in thousands):

	Three Months Ended June 30,
	2014			2013
Service cost	$	1,020		$	1,058
Interest cost		1,186			969
Expected return on plan assets		(1,249	)		(1,205	)
Amortization of prior service cost		(84	)		98
Amortization of net (gain) loss		756			776
Net periodic pension cost	$	1,629		$	1,696

	Six Months Ended June 30,
	2014			2013
Service cost	$	2,040		$	2,115
Interest cost		2,372			1,939
Expected return on plan assets		(2,498	)		(2,409	)
Amortization of prior service cost		(168	)		195
Amortization of net (gain) loss		1,512			1,552
Net periodic pension cost	$	3,258		$	3,392

In April and June 2014, we contributed aggregate principal amounts of $2.0 million and $3.0 million, respectively, of our Senior Notes to our defined benefit pension plan, and expect to contribute an additional $2.5 million aggregate principal amount, for a total of $7.5 million, in aggregate principal amount, over the course of 2014 (see Note 9 for more information). We expect to contribute approximately $0.3 million to our unfunded supplemental executive retirement plan in 2014.