Note 9 - Derivative Financial Instruments (Details) - Effect of Derivative Instruments on Consolidated Statements of Operations (Floor Plan Interest Expense [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Floor Plan Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI (Effective Portion)	$ 108	$ 514
Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(134)	(307)
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ (171)	$ (594)