Note 10 - Income Taxes (Details) - Provision for Federal and State Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current income tax expense:
Federal	$ 13,975	$ 22,368	$ 18,393
State	8,597	11,456	13,322
Total current	22,572	33,824	31,715
Deferred income tax (benefit) expense:
Federal	(2,518)	(7,280)	1,839
State	(1,109)	(1,114)	(626)
Total deferred	(3,627)	(8,394)	1,213
Provision for income taxes	$ 18,945	$ 25,430	$ 32,928

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.