Note 6 - Gross Realized Gains and Gross Realized Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Equity Securities [Member]
Gross realized gains on sales of available-for-sale securities
Equity securities	$ 91	$ 237
Equity securities	$ (1,006)	(325)
Debt Securities [Member]
Gross realized gains on sales of available-for-sale securities
Equity securities		166
Equity securities		(89)
Equity securities	$ 91	403
Equity securities	(1,006)	(414)
Net realized loss on sales of available-for-sale securities	$ (915)	$ (11)

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- Definition

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563

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This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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