Sales (Percentage Of Total Revenues From Significant Customers) (Details)	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Revenue, Major Customer [Line Items]
Percentage of total revenues	71.00%		67.00%		71.00%		76.00%
Customer A [Member]
Revenue, Major Customer [Line Items]
Percentage of total revenues	25.00%		24.00%		25.00%		24.00%
Customer B [Member]
Revenue, Major Customer [Line Items]
Percentage of total revenues	17.00%		19.00%		17.00%		21.00%
Customer C [Member]
Revenue, Major Customer [Line Items]
Percentage of total revenues	16.00%		0.00%	[1]	17.00%		0.00%	[1]
Customer D [Member]
Revenue, Major Customer [Line Items]
Percentage of total revenues	13.00%		0.00%	[1]	12.00%		0.00%	[1]
Customer E [Member]
Revenue, Major Customer [Line Items]
Percentage of total revenues	0.00%	[1]	24.00%		0.00%	[1]	21.00%
Customer F [Member]
Revenue, Major Customer [Line Items]
Percentage of total revenues	0.00%	[1]	0.00%	[1]	0.00%	[1]	10.00%

[1] -% represents less than 10% of total revenues