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Income Taxes
6 Months Ended
May 31, 2021
Income Tax Disclosure [Abstract]  
Income Taxes

10. Income Taxes

Income tax expense was $0.1 million and $0.2 million for the three and six months ended May 31, 2021. Income tax benefit was $20.6 million for the three and six months ended May 31, 2020. Deferred income taxes reflect the net tax effects of loss and credit carryforwards and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Realization of the deferred tax assets is dependent upon future taxable income, the amount, if any, and timing of which are uncertain. The Company has generated losses since inception and has established a valuation allowance to offset deferred tax assets as of May 31, 2021 and November 30, 2020 due to the uncertainty of realizing future tax benefits from its NOL carryforwards and other deferred tax assets.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the CARES Act) was enacted in response to the COVID-19 pandemic. The CARES Act, among other things, permits net operating loss (NOL) carryovers and carrybacks to offset 100% of taxable income for taxable years beginning before 2021. In addition, the CARES Act allows NOLs incurred in taxable years 2018, 2019, and 2020 to be carried back to each of the five preceding taxable years to generate a refund of previously paid income taxes. Any tax benefit as a result of the CARES Act is primarily due to the carryback of NOLs to prior taxable years and increased interest expense deductions. In fiscal 2020, the Company filed refund claims of $19.6 million to carryback its NOLs generated in the fiscal years ended November 30, 2018 and 2019. In fiscal 2020, the Company received cash of $16.3 million including interest income of $0.6 million. In March 2021, the Company received cash of $0.8 million. As of May 31, 2021, the Company has an income tax receivable of $3.1 million on the condensed consolidated balance sheet for the remaining tax refund claims, which includes interest accrued of $0.1 million.