Note 13 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]

	As of December 31 ,
	201 7		201 6
	(In thousands )
Commitments to extend credit	$	2,366,368	$	2,062,241
Standby letters of credit		140,814		75,396
Commercial letters of credit		27,353		37,283
Bill of lading guarantees		24		75
Total	$	2,534,559	$	2,174,995

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Year Ending December 31 ,	Commitment s
	(In thousands )
2018	$	10,076
2019		7,720
2020		5,839
2021		4,996
2022		4,012
Thereafter		7,463
Total minimum lease payments	$	40,106

Schedule of Future Rental Payments to Be Received for Operating Leases [Table Text Block]

Year Ending December 31 ,	Commitment s
	(In thousands )
2018	$	337
2019		186
2020		91
2021		49
Thereafter		25
Total minimum lease payments to be received	$	688