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Note 5 - Accumulated Other Comprehensive Income (Details) - Significant Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Significant Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Income (Loss) [Abstract]
Unrealized gains on available-for-sale securities	[1]	$ 211	$ 190	$ 257	$ 248
	[1]	(71)	(64)	(87)	(84)
	[1]	$ 140	$ 126	$ 170	$ 164
[1] Amounts in parentheses indicate debits to net income

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef



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