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Note 10 - Acquisitions (Details) - Summary of Acquisition (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Summary of Acquisition [Abstract]    
Cash paid, net of cash acquired $ 31,689  
Debt issued 3,161  
34,850  
Inventories 22,281  
Franchise value 2,303  
Property, plant and equipment 2,876  
Other assets 160  
Other liabilities (46)  
27,574  
Goodwill 7,276 17,464
$ 34,850