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Note 8 - Long-term Borrowings - Summary of Long-term Borrowings (Details) (Parentheticals) | Sep. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015
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Subordinated Notes, 5.75% [Member] |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.75% | 5.75% | 5.75%
Subordinated Notes, 5.0% [Member] |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.00% | 5.00% | 5.00%

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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