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Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Loss and Fair Value of Available-for-Sale Securities, Aggregated by Length of Time (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
US Government Agency Bonds [Member]
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Loss and Fair Value of Available-for-Sale Securities, Aggregated by Length of Time [Line Items]
Less Than 12 Months, Fair Value		$ 7,079
Less Than 12 Months, Unrealized Loss		(421)
12 Months or More, Fair Value	7,344
12 Months or More, Unrealized Loss	(156)
Total, Fair Value	7,344	7,079
Total, Unrealized Loss	(156)	(421)
US Government Agency Mortgage-Backed Securities [Member]
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Loss and Fair Value of Available-for-Sale Securities, Aggregated by Length of Time [Line Items]
Less Than 12 Months, Fair Value		8,871
Less Than 12 Months, Unrealized Loss		(291)
12 Months or More, Fair Value	19,484	12,856
12 Months or More, Unrealized Loss	(374)	(345)
Total, Fair Value	19,484	21,727
Total, Unrealized Loss	(374)	(636)
Corporate Debt Securities [Member]
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Loss and Fair Value of Available-for-Sale Securities, Aggregated by Length of Time [Line Items]
12 Months or More, Fair Value	8,844	8,870
12 Months or More, Unrealized Loss	(156)	(130)
Total, Fair Value	8,844	8,870
Total, Unrealized Loss	(156)	(130)
All Securities [Member]
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Loss and Fair Value of Available-for-Sale Securities, Aggregated by Length of Time [Line Items]
Less Than 12 Months, Fair Value		15,950
Less Than 12 Months, Unrealized Loss		(712)
12 Months or More, Fair Value	35,672	21,726
12 Months or More, Unrealized Loss	(686)	(475)
Total, Fair Value	35,672	37,676
Total, Unrealized Loss	$ (686)	$ (1,187)

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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