Note 5 - Income Taxes (Details) - Components of the Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components of the Provision for Income Taxes [Abstract]
Federal	$ 15,964	$ 12,728	$ 6,524
State	1,889	587	1,362
	17,853	13,315	7,886
Federal	3,909	5,542	9,837
State	394	(720)	239
	4,303	4,822	10,076
Total provision	$ 22,156	$ 18,137	$ 17,962

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.