Accounts Receivable (Detail Textuals)	9 Months Ended	12 Months Ended	9 Months Ended			12 Months Ended	9 Months Ended
	Sep. 30, 2013 Commercial Accounts receivable	Dec. 31, 2012 Commercial Accounts receivable	Sep. 30, 2013 Commercial Sales revenue, goods, net	Sep. 30, 2012 Commercial Sales revenue, goods, net	Sep. 30, 2013 U.S. governmental agency Accounts receivable	Dec. 31, 2012 U.S. governmental agency Accounts receivable	Sep. 30, 2013 U.S. governmental agency Sales revenue, goods, net	Sep. 30, 2012 U.S. governmental agency Sales revenue, goods, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	29.20%	9.70%	6.80%	8.70%	25.70%	51.30%	31.50%	18.00%