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Note 9 - Derivative Financial Instruments (Detail) - Effect of Derivative Instruments on Consolidated Statements of Operations (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income (Effective Portion) $ (307)  
Floor Plan Interest Expense [Member]
   
Amount of Gain/(Loss) Recognized in OCI (Effective Portion) 514 283
Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income (Effective Portion) (307) (408)
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) $ (594) $ (654)