Loan and Security Agreements (Details) (USD $)	9 Months Ended			9 Months Ended									3 Months Ended		9 Months Ended
	Sep. 30, 2013	Oct. 04, 2013	Dec. 31, 2012	Sep. 30, 2013 Prime rate [Member]	Sep. 30, 2013 LIBOR 90 day rate [Member]	Sep. 30, 2013 Prior to first anniversary [Member]	Sep. 30, 2013 Prior to second anniversary [Member]	Sep. 30, 2013 Prior to third anniversary [Member]	Sep. 30, 2013 First amendment [Member]	Sep. 30, 2013 First amendment [Member] Prior to first anniversary [Member]	Sep. 30, 2013 First amendment [Member] Prior to second anniversary [Member]	Sep. 30, 2013 First amendment [Member] Prior to third anniversary [Member]	Sep. 30, 2013 2013 Loan and Security Agreement [Member]	Sep. 30, 2012 2013 Loan and Security Agreement [Member]	Sep. 30, 2013 2013 Loan and Security Agreement [Member]	Sep. 30, 2012 2013 Loan and Security Agreement [Member]
Loan and Security Agreements [Line Items]
Unused line fee													$ 40,000	$ 0	$ 80,000	$ 20,000
Loan maximum defined, based on eligible receivables	85.00%
Maximum borrowing capacity under Loan and Security Agreement	10,000,000
Additional borrowing availability under Loan and Security Agreement	6,000,000
Borrowings outstanding under Loan and Security Agreement	2,608,000		0
Remaining borrowing capacity under Loan and Security Agreement	40,000
Loan maximum defined, based on eligible receivables, reserve	800,000	1,500,000
Facility fee, percentage	1.00%								1.50%
Monthly collateral fee	1,500								2,500
Monthly collertal fee (upon default)	3,000								5,000
Credit facility - early termination fee						3.00%	2.00%	1.00%		5.00%	3.00%	2.00%
Amendment fee									200,000
Spread on variable rate				2.75%	5.25%
Interest rate, stated percentage	6.00%
Commitment fee	100,000
Other issue costs	$ 700,000