Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

Income Taxes
3 Months Ended
Mar. 31, 2013
Income Taxes [Abstract]  
Income Taxes
7.  Income Taxes
The Company did not recognize any income tax expense for the three months ended March 31, 2013 and 2012. 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.