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Note 8 - Derivative Financial Instrument (Details) - Effect of Derivative Instruments on Consolidated Statements of Operations - Floor Plan Interest Expense [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]        
Interest Rate Swap Contract, Amount of Gain Recognized in Accumulated OCI (Effective Portion) $ 151 $ 93 $ 252 $ 201
Interest Rate Swap Contract, Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion) (108) (118) (233) (252)
Interest Rate Swap Contract, Amount of Loss Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) $ (191) $ (188) $ (368) $ (359)