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

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	As of December 31,
(In thousands)	2018		2017
Investments in affordable housing partnerships, net	$	259,046	$	260,112
Other borrowings for affordable housing limited partnerships	$	17,298	$	17,481
Investments in affordable housing and alternative energy partnerships, unfunded commitments	$	113,046	$	124,657
Investments in alternative energy tax credit partnerships, net	$	23,688	$	12,759

Unfunded Commitments Future Estimated Payments [Table Text Block]

	Amount
Year Ending December 31,	(In thousands)
2019	$	55,962
2020		29,267
2021		11,669
2022		11,182
2023		1,473
Thereafter		3,493
Total unfunded commitments	$	113,046

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

	As of December 31,
(In thousands)	2018		2017		2016
Affordable housing and other tax credits recognized	$	18,860	$	17,727	$	13,422
Alternative energy tax credit usage	$	15,013	$	3,301	$	24,472