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Note 11 - Borrowed Funds (Details Textual) - USD ($) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Oct. 12, 2017 | Mar. 31, 2019 | Dec. 31, 2018
Advances from Federal Home Loan Banks, Total |  | $ 420,000 | $ 530,000
Long-term Debt, Total |  | 174,448 | 189,448
Junior Subordinated Notes, Noncurrent |  | $ 119,100 | $ 119,100
Junior Subordinated Debt [Member] |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.78% | 4.96%
Debt Instrument, Term |  | 30 years |
SinoPac Bancorp [Member] |  |  |
Business Combination, Deferred Payments |  | $ 17,600 |
Debt Instrument, Interest Rate, Effective Percentage |  | 4.00% |
Debt Instrument, Basis Spread on Variable Rate |  | 1.50% |
Mature in April 2019 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | $ 350,000 |
Mature in December 2019 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | 50,000 |
Mature in May 2023 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | 20,000 |
Mature in July 2019 [Member] | SinoPac Bancorp [Member] |  |  |
Business Combination, Deferred Payments |  | $ 10,600 |
Term Loan [Member] | US Bank [Member] |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 4.25% | 4.125%
Debt Instrument, Face Amount | $ 75,000 |  |
Long-term Debt, Total |  | $ 55,300 |
Debt Instrument, Periodic Payment, Principal | $ 4,700 |  |
Term Loan [Member] | US Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75% |  |
Over-night Borrowings [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | 0 | $ 200,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate |  |  | 2.56%
Non Overnight Borrowings [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | $ 420,000 | $ 330,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate |  | 2.47% | 2.42%

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