Note 3 - Net Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2016		2015
Finished goods	$	30,086	$	32,550
Work in process		61,742		41,358
Raw materials		34,455		30,830
Supplies		5,324		5,182
Total	$	131,607	$	109,920