Restructuring (Summary Of Restructuring Activity) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	$ 612
Other Restructuring charges	430	735
Settlements	(1,042)	(123)
Balance at end of period		612
Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	163
Other Restructuring charges	359	208
Settlements	(522)	(45)
Balance at end of period		163
Facility Costs And Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	65
Other Restructuring charges	71	101
Settlements	(136)	(36)
Balance at end of period		65
Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	384
Other Restructuring charges		426
Settlements	(384)	(42)
Balance at end of period		$ 384