Note 3 - Revenue Recognition 1 (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | ||
---|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
Dec. 31, 2020 |
|
Increase (Decrease) in Contract with Customer, Liability | $ (569) | $ 925 | |
Contract with Customer, Liability, Revenue Recognized | 723 | 1,327 | |
Accounts Receivable, Blenders' Tax Credit | 11,276 | $ 8,300 | |
Accounts Receivable, Allowance for Credit Loss, Ending Balance | 112 | 63 | |
Bill and Hold Inventory Invoiced, but not Shipped [Member] | |||
Contract with Customer, Liability, Total | 2,911 | $ 173 | |
Chemicals [Member] | |||
Increase (Decrease) in Contract with Customer, Liability | $ 209 | $ 2,307 |