Note 7 - Financing Arrangements (Details) - Financing Arrangements (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Note 7 - Financing Arrangements (Details) - Financing Arrangements [Line Items]
Total debt	$ 185,653	$ 259,431
Less: current portion	(12,867)	(2,599)
Long-term portion	172,786	256,832
Senior Notes [Member]
Note 7 - Financing Arrangements (Details) - Financing Arrangements [Line Items]
Long-term debt	172,500	172,500
Revolving Credit Facility [Member]
Note 7 - Financing Arrangements (Details) - Financing Arrangements [Line Items]
Long-term debt		84,000
Other Long-term Debt [Member]
Note 7 - Financing Arrangements (Details) - Financing Arrangements [Line Items]
Long-term debt	$ 13,153	$ 2,931