Acquisition (Details Textual) (USD $)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Xtrakter Limited [Member]	Feb. 28, 2013 Xtrakter Limited [Member]
Acquisition (Textual) [Abstract]
Aggregate business acquisition purchase price	$ 45,974,000			$ 37,100,000
Professional services			1,400,000
Revenue	55,557,000	50,735,000	1,900,000
Net income			$ 100,000

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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+ Details