Geographic Information and Major Customer Data (Details 1)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Customer A [Member]
Major customer data as a percentage of total revenues:
Percentage of total revenues	12.00%	25.00%	12.00%	14.00%
Customer B [Member]
Major customer data as a percentage of total revenues:
Percentage of total revenues	14.00%	17.00%	12.00%	17.00%
Customer C [Member]
Major customer data as a percentage of total revenues:
Percentage of total revenues	24.00%	19.00%	27.00%	15.00%
Customer D [Member]
Major customer data as a percentage of total revenues:
Percentage of total revenues	11.00%