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Note 8 - Commitments and Off-balance Sheet Risk (Tables) | 9 Months Ended
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Sep. 30, 2016
Notes Tables |
Summary of Contractual Amounts of Financial Instruments With Off Balance Sheet Risk [Table Text Block] |
|  | September 30, 2016 |  |  | December 31, 2015 |
Commercial unused lines of credit |  | $ | 537,850,000 |  |  | $ | 522,658,000 |
Unused lines of credit secured by 1 – 4 family residential properties |  |  | 59,137,000 |  |  |  | 61,905,000 |
Credit card unused lines of credit |  |  | 19,360,000 |  |  |  | 15,612,000 |
Other consumer unused lines of credit |  |  | 6,799,000 |  |  |  | 8,583,000 |
Commitments to make loans |  |  | 119,339,000 |  |  |  | 178,034,000 |
Standby letters of credit |  |  | 24,871,000 |  |  |  | 34,946,000 |
|  | $ | 767,356,000 |  |  | $ | 821,738,000 |

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