Note 14 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

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

	As of December 31,
	2014		2013
	(In thousands)
Commitments to extend credit	$	2,071,766	$	1,858,669
Standby letters of credit		53,910		45,058
Commercial letters of credit		48,143		54,098
Bill of lading guarantees		108		80
Total	$	2,173,927	$	1,957,905

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

Year Ending December 31,	Commitments
	(In thousands)
2015	$	6,767
2016		5,840
2017		4,349
2018		3,888
2019		2,431
Thereafter		5,552
Total minimum lease payments	$	28,827

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

Year Ending December 31,	Commitments
	(In thousands)
2015	$	65
2016		46
2017		47
2018		49
2019		33
Thereafter		-
Total minimum lease payments to be received	$	240