Note 14 - Income Taxes (Detail) - Income Tax Provision (Benefit) from Continuing Operations (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Deferred:
	$ 14,172	$ 8,093	$ (2,131)
Total	49,062	33,060	8,625
Segment, Continuing Operations [Member]
Current:
Federal	31,438	21,779	9,093
State	3,626	3,561	1,619
	35,064	25,340	10,712
Deferred:
Federal	10,888	7,046	(1,670)
State	3,110	674	(417)
	13,998	7,720	(2,087)
Total	$ 49,062	$ 33,060	$ 8,625