Note 13 - Income Tax Provision (Benefit) from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Continuing Operations [Member]
Federal	$ 58,408	$ 56,342	$ 46,727
State	14,572	7,944	5,539
	72,980	64,286	52,266
Federal	6,046	10,433	9,010
State	679	236	(702)
	6,725	10,669	8,308
Income tax provision	79,705	74,955	60,574
	12,341	13,355	14,477
Income tax provision	$ 79,705	$ 74,955	$ 60,574