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Note 4 - Allowance for Credit Losses - Schedule for Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Affiliate credit loss impairment credit | $ 0 | $ 0 | $ 0 | $ (1,000)
Trade Accounts Receivable [Member] |  |  |  |
Balance |  |  | 1,948 |
Affiliate credit loss impairment credit |  |  | 620 |
Acquisition of Sonatide joint venture (see Note 8) |  |  | 0 |
Other |  |  | 0 |
Balance | 2,568 |  | 2,568 |
Due from Affiliate [Member] |  |  |  |
Balance |  |  | 72,456 |
Affiliate credit loss impairment credit |  |  | 0 |
Acquisition of Sonatide joint venture (see Note 8) |  |  | (59,678) |
Other |  |  | (1,136) |
Balance | $ 11,642 |  | $ 11,642 |

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- Definition Amount of increase (decrease) in allowance for credit loss on accounts receivable, classified as other. + References No definition available. + Details
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