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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.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average interest rate of debt outstanding.

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Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

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Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments, excluding current portion.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Note 11 - Borrowed Funds (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Nov. 14, 2017	Mar. 31, 2020	Dec. 31, 2019
Securities Sold under Agreements to Repurchase, Total		$ 0	$ 450,000
Advances from Federal Home Loan Banks, Total		495,000	670,000
Short-term Debt, Total		12,898	$ 25,683
Junior Subordinated Notes, Noncurrent		$ 119,100
Junior Subordinated Debt [Member]
Debt Instrument, Interest Rate, Effective Percentage		3.15%	4.09%
Debt Instrument, Term (Year)		30 years
SinoPac Bancorp [Member]
Business Combination, Deferred Payments		$ 7,700
Debt Instrument, Face Amount		$ 7,000
Debt Instrument, Interest Rate, Effective Percentage		2.95%
Mature in April 2021 [Member
Advances from Federal Home Loan Banks, Total		$ 275,000
Mature in May 2021 [Member]
Advances from Federal Home Loan Banks, Total		75,000
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
Short-term debt Through Hong Kong Office [Member]
Short-term Debt, Total		$ 12,900
Debt, Weighted Average Interest Rate		2.40%
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		1.13%	2.26%
Advances from Federal Home Loan Banks, Total		$ 495,000	$ 220,000