Note 18 - Other Comprehensive Income (Details) - Other Comprehensive Income (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Comprehensive Income [Abstract]
Unrealized holding gains arising during the period-Before tax	$ 734,000	$ (569,000)	$ 76,000
Unrealized holding gains arising during the period- Tax	176		(29)
Unrealized holding gains arising during the period-Net	910,000	(569,000)	47,000
Less reclassification adjustment for gains recognized in income			(910,000)
Less reclassification adjustment for gains recognized in income			111,000
Less reclassification adjustment for gains recognized in income			(799,000)
Unrealized holding losses on available for sale securities			(834,000)
Unrealized holding losses on available for sale securities			82,000
Unrealized holding losses on available for sale securities	$ 910,000	$ (569,000)	$ (752,000)

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Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount of tax expense (benefit), after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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