Loan and Security Agreements (Details) (USD $)		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 2013 Loan and Security Agreement [Member]	Dec. 31, 2013 2013 Loan and Security Agreement [Member] Prime rate [Member]	Dec. 31, 2013 2013 Loan and Security Agreement [Member] LIBOR 90 day rate [Member]	Dec. 31, 2013 2013 Loan and Security Agreement [Member] Prior to second anniversary [Member]	Dec. 31, 2013 2013 Loan and Security Agreement [Member] Prior to third anniversary [Member]	Dec. 31, 2013 2013 Loan and Security Agreement [Member] First amendment [Member]	Dec. 31, 2012 2009 Loan and Security Agreement [Member]	Dec. 31, 2011 2009 Loan and Security Agreement [Member]
Loan and Security Agreements [Line Items]
Loan and Security Agreement, Life of Agreement		3 years
Maximum borrowing capacity under Loan and Security Agreement	$ 10,000,000	$ 10,000,000
Loan maximum defined, based on eligible receivables	85.00%	85.00%
Reserve on eligible borrowings	1,500,000	1,500,000
Additional borrowing availability under Loan and Security Agreement	2,000,000	2,000,000
Borrowings outstanding under Loan and Security Agreement	0	0
Credit facility - early termination fee					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		900,000
Unused Capacity, Commitment Fee Percentage		1.00%
Unused line fee		100,000						100,000	100,000
Annual Fee								$ 100,000	$ 100,000