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Note 11 - Borrowed Funds (Details Textual) - USD ($) $ in Thousands |  | 6 Months Ended |
--- | --- | --- | ---
Nov. 14, 2017 | Jun. 30, 2020 | Dec. 31, 2019
Securities Sold under Agreements to Repurchase, Total |  | $ 0 | $ 450,000
Advances from Federal Home Loan Banks, Total |  | 230,000 | $ 670,000
Junior Subordinated Notes, Noncurrent |  | $ 119,100 |
Junior Subordinated Debt [Member] |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 2.48% | 4.09%
Debt Instrument, Term (Year) |  | 30 years |
SinoPac Bancorp [Member] |  |  |
Business Combination, Deferred Payments |  | $ 7,800 |
Debt Instrument, Face Amount |  | $ 7,000 |
Debt Instrument, Interest Rate, Effective Percentage |  | 1.80% |
Mature in November 2020 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | $ 5,000 |
Mature in May 2021 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | 80,000 |
Mature in June 2021 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | 50,000 |
Mature in July 2021 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | 75,000 |
Mature in May 2023 [Member] |  |  |
Advances from Federal Home Loan Banks, Total |  | $ 20,000 |
Business Combination, Deferred Payments [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |  |
Over-night Borrowings [Member] |  |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate |  |  | 1.66%
Non Overnight Borrowings [Member] |  |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate |  | 2.16% | 2.26%
Advances from Federal Home Loan Banks, Total |  | $ 230,000 | $ 220,000

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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