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Income Taxes
3 Months Ended
Mar. 31, 2012
Income Taxes [Abstract]  
Income Taxes

8. Income Taxes

The Company established a valuation allowance for all U.S. deferred tax assets as required by FASB ASC 740-10. During the three months ended March 31, 2012, the Company increased the valuation allowance by $2.1 million (2011 - $0.6 million) to $50.5 million.