Note 7 - Leases - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jan. 01, 2023	Jan. 02, 2022
Total	$ 1,397	$ 1,529
Total	1,394	1,563
Right of Use Assets, Net [Member]
Operating Lease, Right-of-Use Asset	464	809
Finance leases	933	720
Current and Lease Liabilities - Non-current [Member]
Operating Lease, Liability, Total	507	873
Finance leases	$ 887	$ 690