13. Income taxes (Detail) - The components of the Company’s future tax asset as at December 31, 2012, and December 31, 2011 are (USD $)	Dec. 31, 2012	Dec. 31, 2011
Net operating loss carry forward	$ 10,303,902	$ 8,819,549
Valuation allowance	$ (10,303,902)	$ (8,819,549)

The portion of the deferred tax asset arising from a tax credit carryforward for which it is more likely than not that a tax benefit will not be realized.

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Amount of an unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward. This amount is presented as a reduction of the related deferred tax asset in the balance sheet if that deferred tax asset is not used. This amount is presented separately from the deferred tax asset for a net operating loss carryforward if this unrelated tax benefit is associated with a different tax position.

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