Note 12 - Derivative Financial Instruments (Detail) - Effect of Derivative Instruments on Consolidated Statements of Operations (Floor Plan Interest Expense [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Floor Plan Interest Expense [Member]
Amount of Gain/(Loss) Recognized in OCI (Effective Portion)	$ 1,655	$ (1,343)	$ (4,459)
Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(1,413)	(1,899)	(2,814)
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ (2,900)	$ (1,587)	$ (1,483)