Summary of Significant Accounting Policies (Details 2)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Customer
Credit Risk
Number of customers	2		3
Customer one
Credit Risk
Percentage of total sales	14.00%	21.00%	18.00%
Customer two
Credit Risk
Percentage of total sales	10.00%	16.00%	12.00%
Customer three
Credit Risk
Percentage of total sales		14.00%	10.00%
Customer four
Credit Risk
Percentage of total sales		11.00%