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Note 3 - Securities (Details) - Securities Available for Sale (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 Available for Sale [Line Items] |  |
Less than 12 Months - Fair Value | $ 35,971 | $ 33,616
Less than 12 Months - Unrecognized Loss | (581) | (882)
Fair Value | 35,971 | 33,616
Unrecognized Loss | (581) | (882)
US Government-sponsored Enterprises Debt Securities [Member] |  |
Note 3 - Securities (Details) - Securities Available for Sale [Line Items] |  |
Less than 12 Months - Fair Value | 7,860 | 7,841
Less than 12 Months - Unrecognized Loss | (160) | (180)
Fair Value | 7,860 | 7,841
Unrecognized Loss | (160) | (180)
Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |
Note 3 - Securities (Details) - Securities Available for Sale [Line Items] |  |
Less than 12 Months - Fair Value | 28,111 | 25,775
Less than 12 Months - Unrecognized Loss | (421) | (702)
Fair Value | 28,111 | 25,775
Unrecognized Loss | $ (421) | $ (702)

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- Definition Amount of unrealized loss on 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 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on investments in available-for-sale 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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- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized 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)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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