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Note 5 - Leasing Arrangements - Future Minimum Lease Payments (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
2022 $ 430  
2023 862  
2024 881  
2025 907  
2026 934  
Thereafter 2,202  
Total minimum future lease payments 6,216  
Less imputed interest (976)  
Total 5,240  
Current portion of lease liability 613 $ 644
Non-current portion of lease liabilities 4,627 $ 4,938
Operating Lease, Liability, Total $ 5,240