5. Capital Stock (Detail) - Fair Value of Stock Options Granted (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Interest expense:
Directors and relatives of Directors	$ 5,377,907	$ 2,408,193
	5,377,907	2,408,193
Selling, general and administration:
Directors and officers	180,402	209,898
Non-employees	39,353	20,989
	219,755	230,877
Professional fees:
Non-employees		43,785
	$ 5,597,662	$ 2,682,855

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The value of share options (or share units) granted to directors and officers during the period for selling, general and administrative expenses.

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The value of share options (or share units) granted to directors and relatives of directors during the period for interest expense.

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The value of share options (or share units) granted to directors and officers during the period for professional fees.

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The value of share options (or share units) granted to directors and officers during the period for selling, general and administration expenses.

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Total value share options (or share units) granted to directors and officers during the period for professional fees.

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Total value of share options (or share units) granted to directors and relatives of directors during the period for interest expense.

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Total value of share options (or share units) granted to directors and officers during the period for professional fees.

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