Geographic Information (Narrative) (Details)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended				12 Months Ended
	Sep. 30, 2012 Net Sales [Member] customer	Sep. 30, 2011 Net Sales [Member] customer	Sep. 30, 2012 Net Sales [Member] customer	Sep. 30, 2011 Net Sales [Member] customer	Sep. 30, 2012 Net Sales [Member] Two Customers [Member]	Sep. 30, 2011 Net Sales [Member] Two Customers [Member]	Sep. 30, 2012 Net Sales [Member] One Customer [Member]	Sep. 30, 2011 Net Sales [Member] One Customer [Member]	Sep. 30, 2012 Accounts Receivable [Member] customer	Sep. 30, 2012 Accounts Receivable [Member] Two Customers [Member]	Dec. 31, 2011 Accounts Receivable [Member] One Customer [Member]
Concentration Risk [Line Items]
Number of customers	2	2	1	1					2
Percentage of sales and/or receivables					32.00%	31.00%	20.00%	21.00%		26.00%	12.00%