XML 35 R25.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 4 - Inventories (Details Textual) - USD ($)
$ in Millions
Jun. 30, 2018
Dec. 31, 2017
Percentage of LIFO Inventory 71.00% 72.00%
Inventory, LIFO Reserve $ 61.4 $ 59.7
Inventory Valuation Reserves, Ending Balance $ 5.2 $ 4.9