Note 15 - Discontinued Operations and Assets and Related Liabilities Held for Sale - Financial Information of Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Floor plan interest	$ 25,531	$ 19,534	$ 13,861
Other interest	23,207	19,491	10,742
Revenue			12,569
Pre-tax loss from discontinued operations			(467)
Net gain on disposal activities			5,744
			5,277
Income tax expense			(2,097)
Income from discontinued operations, net of income tax expense			3,180
Goodwill and other intangible assets disposed of			211
Discontinued Operations [Member]
Floor plan interest			32
Other interest			8
Total interest			$ 40