Significant Customers & Concentration of Credit Risk (Details Textual) (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Single Customer [Member]	Sep. 30, 2013 Single Customer [Member]	Sep. 30, 2014 Single Financial Services Customer [Member]	Sep. 30, 2014 Automotive Industry [Member]	Sep. 30, 2013 Automotive Industry [Member]	Sep. 30, 2014 Financial & Insurance Industry [Member] [Member]	Sep. 30, 2013 Financial & Insurance Industry [Member] [Member]	Sep. 30, 2014 United States Government [Member]	Sep. 30, 2013 United States Government [Member]
Concentration Risk [Line Items]
Concentration risk percentage			10.00%	10.00%	15.00%	14.00%	16.00%	16.00%	9.00%	9.00%	10.00%
Unbilled accounts receivable	$ 89,064	$ 94,662			$ 19,700