Note 3 - Supplemental Balance Sheet Information Schedule of Property Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified							12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Land and Land Improvements [Member]	Dec. 31, 2012 Land and Land Improvements [Member]	Dec. 31, 2013 Building and Building Improvements [Member]	Dec. 31, 2012 Building and Building Improvements [Member]	Dec. 31, 2013 Building and Building Improvements [Member] Minimum [Member]	Dec. 31, 2013 Building and Building Improvements [Member] Maximum [Member]	Dec. 31, 2013 Machinery and Equipment [Member]	Dec. 31, 2012 Machinery and Equipment [Member]	Dec. 31, 2013 Machinery and Equipment [Member] Minimum [Member]	Dec. 31, 2013 Machinery and Equipment [Member] Maximum [Member]	Dec. 31, 2013 Furniture and Fixtures [Member]	Dec. 31, 2012 Furniture and Fixtures [Member]	Dec. 31, 2013 Furniture and Fixtures [Member] Minimum [Member]	Dec. 31, 2013 Furniture and Fixtures [Member] Maximum [Member]	Dec. 31, 2013 Autos and Trucks [Member]	Dec. 31, 2012 Autos and Trucks [Member]	Dec. 31, 2013 Autos and Trucks [Member] Minimum [Member]	Dec. 31, 2013 Autos and Trucks [Member] Maximum [Member]	Dec. 31, 2013 Construction in Progress [Member]	Dec. 31, 2012 Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 370,146	$ 355,983	$ 11,964	$ 11,437	$ 63,870	$ 64,604			$ 185,307	$ 177,383			$ 25,848	$ 16,933			$ 52,145	$ 50,119			$ 31,012	$ 35,507
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(187,843)	(172,820)
Property, Plant and Equipment, Net	$ 182,303	$ 183,163
Property, Plant and Equipment, Esimated Useful Life							5 years	40 years			4 years	10 years			3 years	10 years			3 years	10 years