Segment, Customer Concentration and Geographical Information (Details Textual)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Customer One [Member]
Segment, Customer Concentration and Geographical Information (Textual) [Abstract]
Percentage contribution to total revenue	46.10%	24.80%	39.60%	23.50%
Customer Two [Member]
Segment, Customer Concentration and Geographical Information (Textual) [Abstract]
Percentage contribution to total revenue	19.40%	20.60%	20.20%	19.60%
Customer Three [Member]
Segment, Customer Concentration and Geographical Information (Textual) [Abstract]
Percentage contribution to total revenue		11.60%		11.90%