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Significant Accounting Policies (Details)	12 Months Ended
Significant Accounting Policies (Details)	Dec. 31, 2012
Computer hardware
Annual rates and methods of depriciation	30% declining balance
Computer software
Annual rates and methods of depriciation	100% declining balance
Furniture and other equipment
Annual rates and methods of depriciation	20% declining balance
Leasehold improvements
Annual rates and methods of depriciation	over the remaining term of the lease

Describes an entity's methodology for allocating the cost of a property, plant or equipment, less salvage value (if any), over the estimated useful life of the asset in a systematic and rational manner.

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