Restructuring (Summary Of Restructuring Activity) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	$ 359	$ 612	$ 612
Charges	354	76	430
Payments/settlements	(403)	(329)
Balance at end of period	310	359	310
Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	62	163	163
Charges	339	20
Payments/settlements	(149)	(121)
Balance at end of period	252	62	252
Facility Costs And Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	11	65	65
Charges	15	56
Payments/settlements	(11)	(110)
Balance at end of period	15	11	15
Inventory Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	286	384	384
Payments/settlements	(243)	(98)
Balance at end of period	$ 43	$ 286	$ 43