Note 2 - Restructuring, Impairment and Other Charges (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring, Settlement and Impairment Provisions	$ 77,000	$ 0	$ 71,000
Payments for Restructuring	12,000	$ 40,000	39,000
Employee Related Costs [Member]
Restructuring Charges	14,000		48,000
Asset Disposals [Member]
Asset Impairment Charges	62,000		22,000
Minor Segment Restructurings, Exit Costs [Member]
Restructuring Charges	$ 1,000		$ 1,000