Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Investments in Affordable Housing and Alternative Energy Partnerships [Table Text Block]

	As of December 31,
(In thousands )	201 7		201 6
Investments in affordable housing partnerships, net	$	260,112	$	236,787
Other borrowings for affordable housing limited partnerships	$	17,481	$	17,661
Investments in affordable housing pertnerships, unfunded commitments	$	124,657	$	115,038
Investments in alternative energy tax credit partnerships, net	$	12,759	$	14,290

Unfunded Commitments Future Estimated Payments [Table Text Block]

	Amoun t
Year Ending December 31 ,	(In thousands )
2018	$	54,817
2019		37,921
2020		16,528
2021		11,238
2022		728
Thereafter		3,425
Total unfunded commitments	$	124,657

Usage of Affordable Housing and Other Tax Credits Including Energy Tax Credit [Table Text Block]

	As of December 31,
(In thousands )	201 7		201 6		201 5
Affordable housing and other tax credits recognized	$	17,727	$	13,422	$	10,100
Alternative energy tax credit usage	$	3,301	$	24,472	$	21,000