Note 10 - Leases and Commitments - Schedule of Right-of-use Assets and Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Feb. 27, 2022	Feb. 28, 2021
Operating right-of-use assets	$ 203	$ 103
Operating Lease, Liability, Current	53	33
Long-term operating lease liabilities	174	$ 86
Total operating lease liabilities	$ 227