Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2013

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

		Three Months Ended
		March 31,
		2013		2012
Service cost	$	8	$	8
Interest cost		177		187
Expected return on plan assets		(214)		(203)
Recognized net actuarial loss		53		49
Net periodic benefit cost	$	24	$	41

United Kingdom Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

		Three Months Ended
		March 31,
		2013		2012
Interest cost	$	80	$	83
Expected return on plan assets		(68)		(71)
Amortization of transition amount		(11)		(12)
Recognized net actuarial loss		53		54
Net periodic cost	$	54	$	54