Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	$ (115)	$ (114)	$ 22
Income Taxes Paid, Net, Total	3,092	539	$ 1,228
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	$ 324	$ 68
Open Tax Year	2018 2019 2021 2021
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Total	$ 3,010
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Operating Loss Carryforwards, Expiration Year	2030
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Operating Loss Carryforwards, Expiration Year	2040