Summary Of Significant Accounting Policies (Concentration of Customers and Suppliers) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014 customer	Sep. 30, 2013 customer	Sep. 30, 2014 customer	Sep. 30, 2013 customer
Major customers
Number of major customers	2	2	2	2
Concentration risk, percentage of total net revenues	100.00%	100.00%	100.00%	100.00%
Revenue [Member] | Customer Concentration Risk [Member] | HP
Major customers
Concentration risk, percentage of total net revenues	55.00%	58.00%	52.00%	56.00%
Revenue [Member] | Customer Concentration Risk [Member] | Tektronix
Major customers
Concentration risk, percentage of total net revenues	5.00%	13.00%	8.00%	15.00%
Revenue [Member] | Customer Concentration Risk [Member] | Other customers less than 10%
Major customers
Concentration risk, percentage of total net revenues	40.00%	29.00%	40.00%	29.00%