Credit Facility (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Apr. 30, 2011	Jun. 30, 2013	Dec. 31, 2012	Apr. 04, 2011
Line of Credit Facility, Initiation Date	Apr. 04, 2011
Line of Credit Facility, Maximum Borrowing Capacity		$ 0.2		$ 5.0
Line of Credit Facility, Interest Rate Description	(i) the prime rate plus 1.75% or (ii) 5.25% percent, plus the payment of certain fees and expenses (the “Facility”).
Line of Credit Facility, Current Borrowing Capacity		1.9		5.0
Line Of Credit Facility Eligible, Accounts Receivable Percentage				80.00%
Line Of Credit Facility Term	2 years
Line of Credit Facility, Amount Outstanding		$ 1.7	$ 2.4