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Note 9 - Derivative Financial Instruments (Details) - Summary of Derivative Instruments: (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Derivative assets:    
Deposits and other current assets   $ 109us-gaap_DerivativeAssetsCurrent
Other assets, net   8us-gaap_DerivativeAssetsNoncurrent
  117us-gaap_DerivativeAssets
Derivative liabilities:    
Other current liabilities (101)us-gaap_DerivativeLiabilitiesCurrent  
$ (101)us-gaap_DerivativeLiabilities