Schedule of Property, Plant and Equipment (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Cost	$ 1,626,635
Accumulated Depreciation	1,035,034
Net Carrying Value	591,601	469,934
Computers and office equipment [Member]
Cost	311,068
Accumulated Depreciation	213,069
Net Carrying Value	97,999	85,258
Field equipment [Member]
Cost	1,315,567
Accumulated Depreciation	821,965
Net Carrying Value	$ 493,602	$ 384,676

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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