The Company and Summary of Significant Accounting Policies (Details 1) (Cost of Revenue [Member])
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Platform Customer A [Member]
       
Schedule of platform customers received revenue-share payments equal to or exceeding 10% of the Company's cost of revenue        
Concentration risk, percentage 19.00% 22.00% 20.00% 15.00%
Platform Customer B [Member]
       
Schedule of platform customers received revenue-share payments equal to or exceeding 10% of the Company's cost of revenue        
Concentration risk, percentage 16.00% 11.00% 17.00%  
Platform Customer C [Member]
       
Schedule of platform customers received revenue-share payments equal to or exceeding 10% of the Company's cost of revenue        
Concentration risk, percentage 13.00% 15.00% 13.00% 19.00%
Platform Customer D [Member]
       
Schedule of platform customers received revenue-share payments equal to or exceeding 10% of the Company's cost of revenue        
Concentration risk, percentage 12.00%   12.00%