Concentration Of Credit Risk (Narrative) (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2014 customer	Dec. 31, 2013 customer
Concentration Risk [Line Items]
Number of significant customers	8
Accounts Receivable [Member]
Concentration Risk [Line Items]
Number of significant customers	5	5
Concentration risk percentage of accounts receivable	43.70%	51.50%