Note 5 - Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Property, Plant and Equipment [Table Text Block]

	December 31,
	2015			2014
Land	$	4,122		$	4,117
Buildings and improvements		106,983			103,083
Machinery and equipment		358,540			365,623
Furniture and fixtures		1,734			1,821
Construction in progress		39,813			20,085
Total		511,192			494,729
Accumulated depreciation		(324,705	)		(331,162	)
Net	$	186,487		$	163,567