Geographical and Customer Information (Details Textual))	Dec. 31, 2012	Dec. 31, 2011
Customer One [Member]
Sales Revenue, Goods, Net, Percentage	17.00%	23.00%
Customer Two [Member]
Sales Revenue, Goods, Net, Percentage	13.00%	17.00%
Customer Three [Member]
Sales Revenue, Goods, Net, Percentage	7.00%	15.00%