XML 48 R36.htm IDEA: XBRL DOCUMENT v3.20.2
Note 1 - Summary of Significant Accounting Policies - Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Finished Goods $ 26,190 $ 31,863
Work in Process 14,418 16,508
Raw Material, Fuel and Supplies 49,146 49,480
Total Inventories $ 89,754 $ 97,851