Note 5 - Goodwill (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Domestic [Member]
Balance	[1]	$ 91,011	$ 22,548
Additions through acquisitions		6,892	68,463
Balance	[1]	$ 97,903	91,011
Reductions through divestitures
Import [Member]
Balance	[1]	$ 79,601	16,797
Additions through acquisitions		5,029	62,804
Balance	[1]	84,384	79,601
Reductions through divestitures		(246)
Luxury [Member]
Balance	[1]	28,763	10,166
Additions through acquisitions		2,170	18,597
Balance	[1]	$ 30,933	28,763
Reductions through divestitures
Balance	[1]	$ 199,375	49,511
Additions through acquisitions		14,091	149,864
Balance	[1]	213,220	$ 199,375
Reductions through divestitures		$ (246)

[1] Net of accumulated impairment losses of $299.3 million recorded during the year ended December 31, 2008.