Note 10 - Segment Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Operating Segments [Member] | Domestic [Member]
Total assets:
Assets	$ 1,018,942	$ 985,374
Operating Segments [Member] | Import [Member]
Total assets:
Assets	825,692	725,011
Operating Segments [Member] | Luxury [Member]
Total assets:
Assets	472,475	475,305
Operating Segments [Member] | Corporate and Other [Member]
Total assets:
Assets	1,004,961	1,041,609
Assets	$ 3,322,070	$ 3,227,299