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Note 11 - Federal Income Taxes (Details) - Consolidated Income Tax Expense (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Income Tax Expense [Abstract]
Current expense	$ 3,359,000us-gaap_CurrentIncomeTaxExpenseBenefit	$ 0us-gaap_CurrentIncomeTaxExpenseBenefit	$ 0us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred expense	4,506,000us-gaap_DeferredIncomeTaxExpenseBenefit	8,092,000us-gaap_DeferredIncomeTaxExpenseBenefit	5,636,000us-gaap_DeferredIncomeTaxExpenseBenefit
Tax expense	$ 7,865,000us-gaap_IncomeTaxExpenseBenefit	$ 8,092,000us-gaap_IncomeTaxExpenseBenefit	$ 5,636,000us-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.