Note 5 - Net Inventories (Tables)

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Net inventories consist of the following:

	June 30, 2019		December 31, 2018
Finished goods	$	41,615	$	30,904
Work in process		18,473		27,513
Raw materials		42,060		44,705
Supplies		7,438		7,940
Total	$	109,586	$	111,062