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Note 8 - Reclassification from Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Reclassification out of Accumulated Other Comprehensive Income [Member] | Floor Plan Interest Expense [Member]      
Loss on cash flow hedges $ (449) $ (488) $ (740)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Income Tax Provision [Member]      
Income tax benefits 174 187 283
Reclassification out of Accumulated Other Comprehensive Income [Member]      
Loss on cash flow hedges, net (275) (301) (457)
Floor Plan Interest Expense [Member]      
Loss on cash flow hedges $ (449) $ (488) $ (740)