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Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
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Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items] |  |
Amortized Cost | $ 36,372 | $ 38,888
Gross Unrealized Losses | 35,686 | 37,701
Gross Unrealized Gains | (686) | (1,187)
US Government Agency Bonds [Member] |  |
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items] |  |
Amortized Cost | 7,500 | 7,500
Gross Unrealized Losses | 7,344 | 7,079
Gross Unrealized Gains | (156) | (421)
US Government Agency Mortgage-Backed Securities [Member] |  |
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items] |  |
Amortized Cost | 19,872 | 22,388
Gross Unrealized Losses | 19,498 | 21,752
Gross Unrealized Gains | (374) | (636)
Corporate Debt Securities [Member] |  |
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items] |  |
Amortized Cost | 9,000 | 9,000
Gross Unrealized Losses | 8,844 | 8,870
Gross Unrealized Gains | $ (156) | $ (130)

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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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