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Note 9 - Deposits (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure Text Block [Abstract] |
Deposit Composition and Interest Rate [Table Text Block] |
|  | 2014 |  |  | 2013 |  |  | 2012 |
(dollars in thousands) |  | Balance |  |  | Average Rate |  |  | Balance |  |  | Average Rate |  |  | Balance |  |  | Average Rate |
Noninterest bearing demand |  | $ | 1,175,799 |  |  |  | - |  |  | $ | 849,409 |  |  |  | - |  |  | $ | 881,390 |  |  |  | - |
Interest bearing transaction |  |  | 143,628 |  |  |  | 0.13 | % |  |  | 118,580 |  |  |  | 0.26 | % |  |  | 113,813 |  |  |  | 0.34 | %
Savings and money market |  |  | 2,302,600 |  |  |  | 0.32 | % |  |  | 1,811,088 |  |  |  | 0.35 | % |  |  | 1,374,869 |  |  |  | 0.48 | %
Time, $100,000 or more |  |  | 393,132 |  |  |  | 0.68 | % |  |  | 203,706 |  |  |  | 0.88 | % |  |  | 232,875 |  |  |  | 1.12 | %
Other time |  |  | 295,609 |  |  |  | 0.70 | % |  |  | 242,631 |  |  |  | 0.54 | % |  |  | 294,275 |  |  |  | 0.71 | %
Total |  | $ | 4,310,768 |  |  |  |  |  |  | $ | 3,225,414 |  |  |  |  |  |  | $ | 2,897,222 |  |  |  |  |
Investments Classified by Contractual Maturity Date [Table Text Block] |
(dollars in thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Three months or less |  | $ | 104,482 |  |  | $ | 82,790 |  |  | $ | 102,022 |
More than three months through six months |  |  | 106,861 |  |  |  | 109,101 |  |  |  | 88,156 |
More than six months through twelve months |  |  | 182,187 |  |  |  | 118,646 |  |  |  | 104,122 |
Over twelve months |  |  | 295,211 |  |  |  | 135,800 |  |  |  | 232,850 |
Total |  | $ | 688,741 |  |  | $ | 446,337 |  |  | $ | 527,150 |
Interest Expense on Deposits [Table Text Block] |
(dollars in thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Interest bearing transaction |  | $ | 178 |  |  | $ | 298 |  |  | $ | 289 |
Savings and money market |  |  | 6,265 |  |  |  | 5,765 |  |  |  | 5,946 |
Time, $100,000 or more |  |  | 2,830 |  |  |  | 2,080 |  |  |  | 2,729 |
Other time |  |  | 365 |  |  |  | 2,471 |  |  |  | 3,093 |
Total |  | $ | 9,638 |  |  | $ | 10,614 |  |  | $ | 12,057 |

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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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