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Income Taxes
3 Months Ended
Apr. 30, 2022
Income Tax Disclosure [Abstract]  
Income Taxes

Note 13. Income Taxes

We evaluate uncertain tax positions for recognition using a more-likely-than-not recognition threshold, and those tax positions eligible for recognition are measured as the largest amount of tax benefit that is greater than 50% likely of being realized upon the effective settlement with a taxing authority that has full knowledge of all relevant information. We believe that we have provided adequate reserves for our income tax uncertainties in all open tax years.

We file tax returns in the U.S. for federal, California, and other states. All tax years remain open to examination for both federal and state purposes as a result of our net operating loss and credit carryforwards. We file tax returns in the United Kingdom and other foreign jurisdictions in which we operate. Certain tax years remain open to examination.