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Note 16 - Supplemental information: (Detail) - The following is a summary of the Company’s deferred tax asset, net of valuation allowance, by geographic region: (USD $)	Dec. 31, 2012	Dec. 31, 2011
Deferred tax asset, net of valuation allowance, by geographic region:	$ 5,970,462	$ 6,880,377
Canada [Member]
Deferred tax asset, net of valuation allowance, by geographic region:	$ 5,970,462	$ 6,880,377

Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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