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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Accounting Policies [Abstract]  
Estimated useful lives of the assets
Depreciation is computed on a straight-line basis over the estimated useful lives of the assets, as follows:
Furniture and fixtures
3 – 7 years
Computer equipment and software
3 years
Vehicles
3 years
Leasehold improvements
Lease term