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Note 7 - Leases - Future Commitments Under Long-term Leases (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
2021, finance | $ 385 |
2021, operating | 586 |
2021, total | 971 |
2022, finance | 207 |
2022, operating | 432 |
2022, total | 639 |
2023, finance | 132 |
2023, operating | 265 |
2023, total | 397 |
2024, finance | 107 |
2024, operating | 91 |
2024, total | 198 |
2025, finance | 55 |
2025, operating | 3 |
2025, total | 58 |
Thereafter, finance | 420 |
Thereafter, operating |  |
Thereafter, total | 420 |
Total lease payments, finance | 1,306 |
Total lease payments, operating | 1,377 |
Total lease payments, total | 2,683 |
Less imputed interest, finance | 341 |
Less imputed interest, operating | 97 |
Less imputed interest, total | 438 |
Total, finance | 965 | $ 850
Total, operating | 1,280 | 1,466
Total, total | 2,245 |
Less: current portion of obligations under leases, finance | 343 | 295
Less: current portion of obligations under leases, operating | 533 | 513
Less: current portion of obligations under leases, total | 876 |
Long-term portion of obligations under leases, finance | 622 | 555
Long-term portion of obligations under leases, operating | 747 | $ 953
Long-term portion of obligations under leases, total | $ 1,369 |

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