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Note 11 - Deposits (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure Text Block [Abstract] |
Deposit Composition And Interest Rate [Table Text Block] |
|  | 2015 |  |  | 2014 |  |  | 2013 |
(dollars in thousands) |  |  |  |  |  | Average |  |  |  |  |  |  | Average |  |  |  |  |  |  | Average |
|  | Balance |  |  | Rate |  |  | Balance |  |  | Rate |  |  | Balance |  |  | Rate |
Noninterest bearing demand |  | $ | 1,405,067 |  |  |  | - |  |  | $ | 1,175,799 |  |  |  | - |  |  | $ | 849,409 |  |  |  | - |
Interest bearing transaction |  |  | 178,797 |  |  |  | 0.16 | % |  |  | 143,628 |  |  |  | 0.13 | % |  |  | 118,580 |  |  |  | 0.26 | %
Savings and money market |  |  | 2,835,325 |  |  |  | 0.34 | % |  |  | 2,302,600 |  |  |  | 0.32 | % |  |  | 1,811,088 |  |  |  | 0.35 | %
Time, $100,000 or more |  |  | 406,570 |  |  |  | 0.77 | % |  |  | 393,132 |  |  |  | 0.68 | % |  |  | 203,706 |  |  |  | 0.88 | %
Other time |  |  | 332,685 |  |  |  | 0.74 | % |  |  | 295,609 |  |  |  | 0.70 | % |  |  | 242,631 |  |  |  | 0.54 | %
Total |  | $ | 5,158,444 |  |  |  |  |  |  | $ | 4,310,768 |  |  |  |  |  |  | $ | 3,225,414 |  |  |  |  |
Investments Classified by Contractual Maturity Date [Table Text Block] |
(dollars in thousands) |  | 2015 |  |  | 2014 |  |  | 2013 |
Three months or less |  | $ | 88,483 |  |  | $ | 104,482 |  |  | $ | 82,790 |
More than three months through six months |  |  | 123,789 |  |  |  | 106,861 |  |  |  | 109,101 |
More than six months through twelve months |  |  | 234,684 |  |  |  | 182,187 |  |  |  | 118,646 |
Over twelve months |  |  | 292,299 |  |  |  | 295,211 |  |  |  | 135,800 |
Total |  | $ | 739,255 |  |  | $ | 688,741 |  |  | $ | 446,337 |
Interest Expense On Deposits [Table Text Block] |
(dollars in thousands) |  | 2015 |  |  | 2014 |  |  | 2013 |
Interest bearing transaction |  | $ | 291 |  |  | $ | 178 |  |  | $ | 298 |
Savings and money market |  |  | 8,185 |  |  |  | 6,265 |  |  |  | 5,765 |
Time, $100,000 or more |  |  | 5,019 |  |  |  | 2,830 |  |  |  | 2,080 |
Other time |  |  | 848 |  |  |  | 365 |  |  |  | 2,471 |
Total |  | $ | 14,343 |  |  | $ | 9,638 |  |  | $ | 10,614 |

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- Definition The tabular disclosure for the composition and interest rate for the Bank's deposits. + References No definition available. + Details
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- Definition The tabular disclosure for interest expense on deposits. + References No definition available. + Details
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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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