Note 9 - Derivative Financial Instruments (Details) - Effect of Derivative Instruments on Consolidated Statements of Operations (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI (Effective Portion)	$ 18	$ 476	$ 914	$ 998
Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(134)		(606)
Floor Plan Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(134)	(309)	(606)	(1,067)
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ (173)	$ (788)	$ (1,064)	$ (2,172)