Note 10 - Provision for Income Tax Benefit from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal	$ 21,554	$ 13,632	$ 8,647
State	3,625	3,120	2,104
Total current	25,179	16,752	10,751
Federal	(1,563)	1,496	3,670
State	(236)	156	313
Total deferred	(1,799)	1,652	3,983
Income taxes	$ 23,380	$ 18,404	$ 14,734