Note 7 - Inventories (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
|
| Inventory, LIFO Reserve, Period Charge | $ 1,300 | $ 2,900 | $ 2,924 | $ 5,207 |
| Inventory Write-down | $ 3,700 | $ 2,400 | $ 6,200 | $ 5,200 |
| X | ||||||||||
- Definition The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|