Note 2 - Interim Financial Presentation	3 Months Ended
Feb. 27, 2021
Notes to Financial Statements
Condensed Financial Statements [Text Block]	2. Interim Financial Presentation All intercompany accounts and transactions have been eliminated in the condensed consolidated financial statements. The results of operations for the three months ended February 27, 2021 are not necessarily indicative of results for the full fiscal year. These interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended November 28, 2020. *Income Taxes* We calculate an anticipated effective tax rate for the year based on our annual estimates of pretax income and use that effective tax rate to record our year-to-date income tax provision. Any change in annual projections of pretax income could have a significant impact on our effective tax rate for the respective quarter. Our effective tax rates for the quarters ended February 27, 2021 and February 29, 2020 of 29.4% and 34.5%, respectively, differ from the federal statutory rate of 21% primarily due to the effects of state income taxes and various permanent differences, including tax deficiencies of $135 and $114 during the quarters ended February 27, 2021 and February 29, 2020, respectively, arising from stock-based compensation.

Note 2 - Interim Financial Presentation

3 Months Ended

Feb. 27, 2021

Condensed Financial Statements [Text Block]

2. Interim Financial Presentation

All intercompany accounts and transactions have been eliminated in the condensed consolidated financial statements. The results of operations for the three months ended February 27, 2021 are not necessarily indicative of results for the full fiscal year. These interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended November 28, 2020.

Income Taxes

We calculate an anticipated effective tax rate for the year based on our annual estimates of pretax income and use that effective tax rate to record our year-to-date income tax provision. Any change in annual projections of pretax income could have a significant impact on our effective tax rate for the respective quarter.

Our effective tax rates for the quarters ended February 27, 2021 and February 29, 2020 of 29.4% and 34.5%, respectively, differ from the federal statutory rate of 21% primarily due to the effects of state income taxes and various permanent differences, including tax deficiencies of $135 and $114 during the quarters ended February 27, 2021 and February 29, 2020, respectively, arising from stock-based compensation.