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Note 16 - Fair Value Measurement - Summary of the Fair Values of the Company's Derivative Instrument Assets and Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Derivative instrument asset | $ 172 | $ 731
Derivative instrument liability | (1,718) |
Fair Value, Recurring [Member] |  |
Derivative instrument asset | 542 | 731
Derivative instrument liability | (1,718) |
Total assets (liability) | (1,176) |
Total assets |  | 731
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivative instrument asset |  |
Derivative instrument liability |  |
Total assets (liability) |  |
Total assets |  |
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Derivative instrument asset | 542 | 731
Derivative instrument liability | (1,718) |
Total assets (liability) | (1,176) |
Total assets |  | 731
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Derivative instrument asset |  |
Derivative instrument liability |  |
Total assets (liability) |  |
Total assets |  |

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