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Note 18 - Restructuring Activities (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 9 Months Ended 10 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Oct. 31, 2013
Jun. 30, 2014
Performance Materials [Member]
Jun. 30, 2013
Performance Materials [Member]
Dec. 31, 2012
Performance Materials [Member]
Note 18 - Restructuring Activities (Details) [Line Items]                  
Restructuring Charges $ 404 $ 46 $ 404 $ 1,652 $ 762 $ 3,636 $ 225 $ 144 $ 292
Restructuring Reserve, Current $ 1,325   $ 1,325     $ 2,029