Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

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Income Taxes
3 Months Ended
Mar. 31, 2012
Income Taxes [Abstract]  
Income Taxes
 
8. 
Income Taxes

The Company did not recognize any income tax expense for the three months ended March 31, 2012 and income tax expense was not material for the three months ended March 31, 2011. The Company's effective tax rate will fluctuate from period to period due to several factors inherent in the nature of the Company's operations and business transactions. The factors that most significantly impact this rate include the variability of licensing transactions in foreign jurisdictions.