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Note 13 - Income Taxes (Details) - Provision (Benefit) for Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Provision (Benefit) for Income Taxes [Abstract]
Federal	$ 4,859us-gaap_CurrentFederalTaxExpenseBenefit	$ 6,207us-gaap_CurrentFederalTaxExpenseBenefit	$ 8,058us-gaap_CurrentFederalTaxExpenseBenefit
State and local	657	1,265	1,021
	5,516us-gaap_CurrentIncomeTaxExpenseBenefit	7,472us-gaap_CurrentIncomeTaxExpenseBenefit	9,079us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred	(2,566)us-gaap_DeferredIncomeTaxExpenseBenefit	(2,195)us-gaap_DeferredIncomeTaxExpenseBenefit	(1,217)us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax provision	$ 2,950us-gaap_IncomeTaxExpenseBenefit	$ 5,277us-gaap_IncomeTaxExpenseBenefit	$ 7,862us-gaap_IncomeTaxExpenseBenefit

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