Note 13 - Commitments and Contingencies - Financial Instruments With Off-balance Sheet Risk (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
---|---|---|
Commitments | $ 2,174,995 | $ 2,059,514 |
Commitments to Extend Credit [Member] | ||
Commitments | 2,062,241 | 1,971,848 |
Standby Letters of Credit [Member] | ||
Commitments | 75,396 | 49,081 |
Commercial Letters of Credit [Member] | ||
Commitments | 37,283 | 38,131 |
Bill of Lading Guarantees [Member] | ||
Commitments | $ 75 | $ 454 |