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Note 10 - Other Borrowings and Subordinated Debentures (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Debt [Table Text Block] |
(In thousands) |  | 2016 |  | 2015
Other Borrowings |  |  |  |  |  |  |  |
FHLB advances, net of discount, due 2017 to 2033, 0.46% to 7.37% secured by residential real estate loans |  | $ | 225,230 |  |  | $ | 109,989 |
Notes payable, due 10/15/2020, 3.85%, fixed rate, unsecured |  |  | 47,929 |  |  |  | 52,300 |
Total other borrowings |  |  | 273,159 |  |  |  | 162,289 |
Subordinated Debentures |  |  |  |  |  |  |  |
Trust preferred securities, due 12/30/2033, floating rate of 2.80% above the three month LIBOR rate, reset quarterly, callable without penalty |  |  | 20,620 |  |  |  | 20,620 |
Trust preferred securities, net of discount, due 6/30/2035, floating rate of 1.75% above the three month LIBOR rate, reset quarterly, callable without penalty |  |  | 9,225 |  |  |  | 9,723 |
Trust preferred securities, net of discount, due 9/15/2037, floating rate of 1.37% above the three month LIBOR rate, reset quarterly |  |  | 10,130 |  |  |  | 9,975 |
Trust preferred securities, net of discount, due 12/3/2033, floating rate of 2.88% above the three month LIBOR rate, reset quarterly, callable without penalty |  |  | 5,161 |  |  |  | 5,167 |
Trust preferred securities, net of discount, due 12/13/2034, floating rate of 2.00% above the three month LIBOR rate, reset quarterly, callable without penalty |  |  | 5,105 |  |  |  | 5,063 |
Trust preferred securities, net of discount, due 6/6/2037, floating rate of 1.57% above the three month LIBOR rate, reset quarterly, callable without penalty |  |  | 10,156 |  |  |  | 10,022 |
Total subordinated debentures |  |  | 60,397 |  |  |  | 60,570 |
Total other borrowings and subordinated debentures |  | $ | 333,556 |  |  | $ | 222,859 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
(In thousands) | Year |  | Annual Maturities
| 2017 |  | $ | 193,714 |
| 2018 |  |  | 23,913 |
| 2019 |  |  | 7,673 |
| 2020 |  |  | 36,429 |
| 2021 |  |  | 2,332 |
| Thereafter |  |  | 69,495 |
| Total |  | $ | 333,556 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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