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Note 10 - Acquisitions (Details) - Summary of Acquisition (USD $)
In Thousands, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Summary of Acquisition [Abstract]      
Cash paid, net of cash acquired $ 79,482 $ 31,786  
Debt issued 3,161    
82,643    
Inventories 42,997    
Franchise value 6,529    
Property, plant and equipment 17,302    
Other assets 430    
Other liabilities (108)    
67,150    
Goodwill 15,493   17,464
$ 82,643