Note 14 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

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

	As of December 31,
	2015		2014
	(In thousands)
Commitments to extend credit	$	1,971,848	$	2,071,766
Standby letters of credit		49,081		53,910
Commercial letters of credit		38,131		48,143
Bill of lading guarantees		454		108
Total	$	2,059,514	$	2,173,927

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

Year Ending December 31,	Commitments
	(In thousands)
2016	$	7,887
2017		6,444
2018		4,939
2019		3,209
2020		1,586
Thereafter		4,869
Total minimum lease payments	$	28,934

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

	(In thousands)
2016	$	294
2017		171
2018		73
2019		58
2020		15
Thereafter		-
Total minimum lease payments to be received	$	611