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Note 8 - Derivative Instruments - Fair Value of Forward and Put Option Contracts (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Contracts in asset position | $ 7,195 | $ 3,470
Contracts in liability position | (3,906) | (11,737)
Contracts in asset position | 6,346 | 4,558
Forward and Put Option Contracts [Member] | Current Derivatives Assets [Member] |  |
Contracts in asset position | 3,300 | 200
Contracts in liability position | (1,100) | (200)
Net asset (liability) | 2,200 | 0
Forward and Put Option Contracts [Member] | Noncurrent Derivative Assets [Member] |  |
Net asset (liability) | 2,100 | 400
Contracts in asset position | 2,300 | 500
Contracts in liability position | (200) | (100)
Forward and Put Option Contracts [Member] | Current Derivative Liabilities [Member] |  |
Contracts in asset position | 0 | 100
Contracts in liability position | (3,900) | (11,800)
Net asset (liability) | (3,900) | (11,700)
Forward and Put Option Contracts [Member] | Other Noncurrent Liabilities [Member] |  |
Net asset (liability) | (800) | 0
Contracts in asset position | 400 | 0
Contracts in liability position | $ (1,200) | $ 0

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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