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Note 9 - Short-term Borrowings (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
ABL Revolving Credit Facility [Member]    
Short-term Debt $ 0 $ 0
Other Lines of Credit [Member]    
Short-term Debt 33,649,000 8,594,000
Short-term Debt $ 33,649,000 $ 8,594,000