Note 9 - Derivative Financial Instrument (Details) - Effect of Derivative Instruments on Consolidated Statements of Operations (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Swap Contract, Amount of Gain Recognized in Accumulated OCI (Effective Portion)	$ 179	$ 18	$ 381	$ 914
Floor Plan Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Swap Contract, Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	(119)	(134)	(370)	(606)
Interest Rate Swap Contract, Amount of Loss Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	$ (184)	$ (173)	$ (543)	$ (1,064)