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Note 9 - Other (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Note 9 - Other (Details) [Line Items]    
Proceeds from Insurance Settlement, Investing Activities $ 973,000 $ 2,000
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property 771,000  
Gain Related to Property and Equipment, Net [Member]
   
Note 9 - Other (Details) [Line Items]    
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property 800,000  
Real Property in Florence, South Carolina [Member]
   
Note 9 - Other (Details) [Line Items]    
Assets Held-for-sale, Long Lived, Fair Value Disclosure 200,000  
Impairment of Long-Lived Assets to be Disposed of 200,000  
Maximum [Member]
   
Note 9 - Other (Details) [Line Items]    
Proceeds from Insurance Settlement, Investing Activities $ 1,000,000