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Note 9 - Commitments and Off-Balance Sheet Risk (Tables) | 9 Months Ended
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Sep. 30, 2014
Disclosure Text Block Supplement [Abstract] |
Summary of Contractual Amounts of Financial Instruments with Off-balance Sheet Risk [Table Text Block] |
|  | September 30, |  |  | December 31, |
|  | 2014 |  |  | 2013 |
Commercial unused lines of credit |  | $ | 553,734,000 |  |  | $ | 257,937,000 |
Unused lines of credit secured by 1 – 4 family residential properties |  |  | 59,991,000 |  |  |  | 23,429,000 |
Credit card unused lines of credit |  |  | 11,303,000 |  |  |  | 9,013,000 |
Other consumer unused lines of credit |  |  | 9,681,000 |  |  |  | 5,695,000 |
Commitments to make loans |  |  | 128,196,000 |  |  |  | 58,799,000 |
Standby letters of credit |  |  | 37,482,000 |  |  |  | 19,670,000 |
|  | $ | 800,387,000 |  |  | $ | 374,543,000 |

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- Definition Tabular disclosure of contractual amounts of financial instruments with off-balance sheet risk. + References No definition available. + Details
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