Pension And Other Retirement Benefit Plans (Components Of Net Periodic Benefit Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Pension And Other Retirement Benefit Plans [Abstract]
Service cost	$ 21	$ 28	$ 43	$ 56
Interest cost	53	53	106	107
Amortization of prior service cost	14	14	27	27
Amortization of actuarial losses	10	0	20	1
Net periodic benefit cost	$ 98	$ 95	$ 196	$ 191