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Note 5 - Derivative Financial Instruments (Detail) - Summary of derivative instruments: (USD $)
Sep. 30, 2012
Dec. 31, 2011
Derivative assets:    
Derivative assets $ 49  
Derivative liabilities:    
Derivative Liabilities   223
Deposits and Other Current Assets [Member]
    
Derivative assets:    
Derivative assets 36  
Other Assets, Net [Member]
    
Derivative assets:    
Derivative assets 13  
Other Current Liabilities [Member]
    
Derivative liabilities:    
Derivative Liabilities   147
Other Long-Term Liabilities [Member]
    
Derivative liabilities:    
Derivative Liabilities   $ 76