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Note 12 - Commitments and Contingencies - Future Minimum Payments Under Non-Cancelable Operating Leases (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Short-term Leases, 2019 (remaining) $ 337
Operating Leases, 2019 (remaining) 210
Short-term Leases, 2020 230
Operating Leases, 2020 425
Short-term Leases, 2021 3
Operating Leases, 2021 215
Short-term Leases, 2022
Operating Leases, 2022
Short-term Leases, 2023 and thereafter
Operating Leases, 2023 and thereafter
Short-term Leases, Total 570
Operating Leases, Total $ 850