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Note 7 - Leases - Future Minimum Payments (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
2022 $ 1,294  
2023 1,241  
2024 656  
2025 506  
2026 495  
Thereafter 1,722  
Total future minimum operating lease payments 5,914  
Amounts representing interest (1,037)  
Other Liabilities [Member]    
Present value of net future minimum operating lease payments $ 4,877 $ 5,075