The Company and Summary of Significant Accounting Policies (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Sales by geographic area
Percentage of Sales by Geographic Area	100.00%	100.00%	100.00%	100.00%
United States [Member]
Sales by geographic area
Percentage of Sales by Geographic Area	83.00%	77.00%	84.00%	77.00%
Other Countries [Member]
Sales by geographic area
Percentage of Sales by Geographic Area	17.00%	23.00%	16.00%	23.00%