Stock Purchase Warrants (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Stockholders' Equity Note, Warrants or Rights, Activity [Table Text Block]

			Weighted Average
	Number		Exercise Price
			$
Balance, December 31, 2009	9,182,498		3.27
Issued	2,000,000		3.00
Exercised	(25,000	)	3.00
Expired	(4,932,498	)	3.50
Balance December 31, 2010	6,225,000		3.00
Expired	(183,579	)	3.00
Exercised	(4,041,421	)	3.00
Balance December 31, 2011 and 2012	2,000,000		3.00

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

Number of Warrants	Exercise Price	Expiry Date
	$
2,000,000	3.00	June 30, 2014