XML 37 R27.htm IDEA: XBRL DOCUMENT v3.20.2
Note 4 - Inventories (Details Textual) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Inventory, LIFO Reserve $ 63.7 $ 62.5
Inventory Valuation Reserves, Ending Balance $ 5.9 $ 5.9