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Note 17 - Subsequent Events (Details) shares in Thousands, $ in Thousands | Jul. 31, 2015 USD ($) shares | Jun. 30, 2015 USD ($) | Dec. 31, 2014 USD ($)
--- | --- | --- | ---
Note 17 - Subsequent Events (Details) [Line Items] |  |  |
Assets |  | $ 11,918,316 | $ 11,516,846
Loans and Leases Receivable, Gross |  | 9,502,008 | 8,914,080
Deposits |  | 9,338,863 | $ 8,783,460
Asia Bancshares [Member] |  |  |
Note 17 - Subsequent Events (Details) [Line Items] |  |  |
Assets |  | 520,500 |
Loans and Leases Receivable, Gross |  | 413,700 |
Deposits |  | 437,100 |
Stockholders' Equity Attributable to Parent |  | $ 79,300 |
Asia Bancshares [Member] | Subsequent Event [Member] |  |  |
Note 17 - Subsequent Events (Details) [Line Items] |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares) | shares | 2,580 |  |
Payments to Acquire Businesses, Gross | $ 57,000 |  |
Asia Bancshares [Member] | Subsequent Event [Member] | NEW YORK |  |  |
Note 17 - Subsequent Events (Details) [Line Items] |  |  |
Number of Branches Acquired | 3 |  |
Asia Bancshares [Member] | Subsequent Event [Member] | MARYLAND |  |  |
Note 17 - Subsequent Events (Details) [Line Items] |  |  |
Number of Branches Acquired | 1 |  |

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