Accounts Payable and Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accounts Payable and Accrued Liabilities, Current [Abstract]
Trade accounts payable	$ 4,515	$ 5,607
Accrued professional fees	1,046	295
Income taxes payable	8,173	6,913
Sales taxes payable	4,038	2,651
Other accrued liabilities	46	31
Accounts payable and accrued liabilities	$ 17,818	$ 15,497