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Note 12 - Regulatory Matters (Details) (USD $) | 0 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 10, 2014 | Feb. 10, 2014 | Jan. 16, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2009
Disclosure Text Block [Abstract] |  |  |  |  |  |
Trust Preferred Securities Included in Tier One Capital |  |  |  | $ 32,000,000 | $ 32,000,000 |
Maximum Restricted Core Element Allowed in Tier One Capital Percent |  |  |  | 25.00% |  |
Maximum Level of Consolidated Aggregate Assets Allowing for Inclusion of Trust Preferred Securities in Tier One Capital Under Dodd Frank Act |  |  |  |  |  | $ 15,000,000,000
Dividends Payable, Date Declared |  |  | Jan. 16, 2014 |  |  |
Common Stock, Dividends, Per Share, Declared |  |  | $ 0.12 |  |  |
Dividends Payable, Date to be Paid | Mar. 10, 2014 |  |  |  |  |
Dividends Payable, Date of Record |  | Feb. 10, 2014 |  |  |  |

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- Definition Maximum level of consolidated aggregate assets allowing for inclusion of trust preferred securities in Tier 1 Capital under Dodd-Frank Act. + References No definition available. + Details
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- Definition Maximum restricted core element allowed in tier one capital percent. + References No definition available. + Details
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- Definition Trust preferred securities held by the trust that are included in Tier One Capital and subject to certain limitations. + References No definition available. + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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