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Divestment of investments (Details Textual) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2010
Dec. 31, 2012
Dec. 31, 2011
Proceeds From Sale Of Equity Method Investments $ 1,136 $ 0 $ 401
Gain on sale of Moneygate   0 81
Deferred Consideration Final Installment Amount     $ 370