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Note 20 - Financial Instruments with Off-Balance Sheet Risk (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure Text Block Supplement [Abstract] |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] |
(dollars in thousands) |  | 2015 |  |  | 2014 |
Unfunded loan commitments |  | $ | 1,838,336 |  |  | $ | 1,625,957 |
Unfunded lines of credit |  |  | 112,159 |  |  |  | 105,895 |
Letters of credit |  |  | 83,511 |  |  |  | 75,615 |
Total |  | $ | 2,034,006 |  |  | $ | 1,807,467 |

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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13467-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 + Details
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