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Note 3 - Securities (Details) - Securities Held to Maturity with Unrealized Losses (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Mar. 31, 2014 | Dec. 31, 2013
Note 3 - Securities (Details) - Securities Held to Maturity with Unrealized Losses [Line Items] |  |
Less Than 12 Months - Fair Value | $ 5,980 | $ 6,743
Less Than 12 Months - Unrecognized Loss | (311) | (307)
12 Months or More - Fair Value | 224 | 1,142
12 Months or More - Unrecognized Loss | (32) | (114)
Fair Value | 6,204 | 7,885
Unrecognized Loss | (343) | (421)
US States and Political Subdivisions Debt Securities [Member] |  |
Note 3 - Securities (Details) - Securities Held to Maturity with Unrealized Losses [Line Items] |  |
Less Than 12 Months - Fair Value | 5,980 | 6,743
Less Than 12 Months - Unrecognized Loss | (311) | (307)
12 Months or More - Fair Value | 224 | 1,142
12 Months or More - Unrecognized Loss | (32) | (114)
Fair Value | 6,204 | 7,885
Unrecognized Loss | $ (343) | $ (421)

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- Definition Amount of unrealized loss on investments in held-to-maturity securities that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on investments in held-to-maturity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss before deducting unrealized gain on investments in held-to-maturity securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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