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Note 11 - Income Taxes (Details) - Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Provision for Income Taxes [Abstract]
Current Federal income taxes									$ 2,276us-gaap_CurrentIncomeTaxExpenseBenefit	$ 2,134us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred Federal income taxes									368us-gaap_DeferredIncomeTaxExpenseBenefit	212us-gaap_DeferredIncomeTaxExpenseBenefit
Net provision	$ 731us-gaap_IncomeTaxExpenseBenefit	$ 580us-gaap_IncomeTaxExpenseBenefit	$ 636us-gaap_IncomeTaxExpenseBenefit	$ 697us-gaap_IncomeTaxExpenseBenefit	$ 519us-gaap_IncomeTaxExpenseBenefit	$ 604us-gaap_IncomeTaxExpenseBenefit	$ 490us-gaap_IncomeTaxExpenseBenefit	$ 733us-gaap_IncomeTaxExpenseBenefit	$ 2,644us-gaap_IncomeTaxExpenseBenefit	$ 2,346us-gaap_IncomeTaxExpenseBenefit

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

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