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Note 6 - Leases - Details of Right-of-Use Assets and Lease Liabilities (Details) - USD ($)
$ in Thousands
Apr. 03, 2022
Jan. 02, 2022
Total right-of-use assets $ 1,336 $ 1,529
Total lease liabilities 1,377 1,563
Right of Use Assets, Net [Member]    
Operating leases 725 809
Finance leases 611 720
Current and Lease Liabilities - Non-current [Member]    
Operating leases 786 873
Finance leases $ 591 $ 690