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Note 9 - Leases - Lease Liability Maturity Schedule (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Twelve months ending September 30, 2022 $ 356  
Twelve months ending September 30, 2023 350  
Twelve months ending September 30, 2024 347  
Twelve months ending September 30, 2025 263  
Twelve months ending September 30, 2026 219  
Thereafter 440  
Total undiscounted cash flows 1,975  
Less: discount (185)  
Other Liabilities [Member]    
Lease liability $ 1,790 $ 2,016