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Note 8 - Leases (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jul. 02, 2023
Jun. 30, 2024
Jul. 02, 2023
Dec. 31, 2023
Operating Lease, Expense $ 100 $ 100 $ 200 $ 200  
Operating and Finance Lease, Right of Use Asset 896   896   $ 981
Operating and Finance Lease Liability $ 900   900   $ 1,000
Operating Lease, Right-of-Use Asset, Periodic Reduction     $ 131 $ 181  
Minimum [Member]          
Lessee, Operating Lease, Term of Contract (Year) 1 year   1 year    
Maximum [Member]          
Lessee, Operating Lease, Term of Contract (Year) 3 years   3 years