Concentration of Credit Risk (Details Textual)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Customer 1 [Member]
Entity-Wide Accounts Receivable, Major Customer, Percentage	53.00%	43.00%	53.00%	43.00%
Concentration Risk, Percentage	36.00%	40.00%	45.00%	45.00%
Customer 2 [Member]
Entity-Wide Accounts Receivable, Major Customer, Percentage	15.00%	11.00%	15.00%	11.00%
Concentration Risk, Percentage	16.00%	11.00%	11.00%	10.00%
Customer 3 [Member]
Entity-Wide Accounts Receivable, Major Customer, Percentage	14.00%		14.00%
Concentration Risk, Percentage	14.00%		11.00%