Significant Customers (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
World wide distributors 1 [Member]
Significant Customers (Textual) [Abstract]
Net revenues	$ 47.5	$ 39.5
Percentage of net revenues	25.00%	20.00%
Percentage of accounts receivable	30.00%		23.00%
World wide distributors 2 [Member]
Significant Customers (Textual) [Abstract]
Net revenues	30.7	36.4
Percentage of net revenues	16.00%	18.00%
Percentage of accounts receivable	15.00%		10.00%
OEM [Member]
Significant Customers (Textual) [Abstract]
Net revenues	$ 20.1
Percentage of net revenues	11.00%
Asian based stocking [Member]
Significant Customers (Textual) [Abstract]
Percentage of accounts receivable	12.00%		11.00%