Note 13 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	March 31, 2019
	Fair Value Measurements Using						Total Fair Value
	Level 1		Level 2		Level 3		Measurements
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	149,240	$	—	$	—	$	149,240
U.S. government agency entities		—		5,531		—		5,531
U.S. government sponsored entities		—		393,274		—		393,274
Mortgage-backed securities		—		695,961		—		695,961
Collateralized mortgage obligations		—		881		—		881
Corporate debt securities		—		64,966		—		64,966
Total securities available-for-sale	$	149,240	$	1,160,613	$	—	$	1,309,853
Equity securities
Mutual funds	$	6,171	$	—	$	—	$	6,171
Preferred stock of government sponsored entities		11,443		—		—		11,443
Other equity securities		11,647		—		—		11,647
Total equity securities	$	29,261	$	—	$	—	$	29,261
Warrants	$	—	$	—	$	181	$	181
Interest rate swaps		—		4,480		—		4,480
Foreign exchange contracts		—		459		—		459
Total assets	$	178,501	$	1,165,552	$	181	$	1,344,234
Liabilities
Option contracts	$	—	$	12	$	—	$	12
Interest rate swaps		—		5,727		—		5,727
Foreign exchange contracts		—		645		—		645
Total liabilities	$	—	$	6,384	$	—	$	6,384

	December 31, 2018
	Fair Value Measurements Using						Total Fair Value
	Level 1		Level 2		Level 3		Measurements
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	124,751	$	—	$	—	$	124,751
U.S. government agency entities		—		5,871		—		5,871
U.S. government sponsored entities		—		388,363		—		388,363
Mortgage-backed securities		—		656,744		—		656,744
Collateralized mortgage obligations		—		977		—		977
Corporate debt securities		—		65,803		—		65,803
Total securities available-for-sale	$	124,751	$	1,117,758	$	—	$	1,242,509
Equity securities
Mutual funds	$	6,094	$	—	$	—	$	6,094
Preferred stock of government sponsored entities		7,822		—		—		7,822
Other equity securities		11,182		—		—		11,182
Total equity securities	$	25,098	$	—	$	—	$	25,098
Warrants	$	—	$	—	$	184	$	184
Interest rate swaps		—		7,810		—		7,810
Foreign exchange contracts		—		397		—		397
Total assets	$	149,849	$	1,125,965	$	184	$	1,275,998
Liabilities
Option contracts	$	—	$	6	$	—	$	6
Interest rate swaps		—		1,543		—		1,543
Foreign exchange contracts		—		1,763		—		1,763
Total liabilities	$	—	$	3,312	$	—	$	3,312

Fair Value Measurements, Nonrecurring [Table Text Block]

	As of March 31, 2019								Total Losses
	Fair Value Measurements Using						Total Fair Value		For the Three Months Ended
	Level 1		Level 2		Level 3		Measurements		March 31, 2019		March 31, 2018
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	440	$	440	$	—	$	—
Commercial mortgage loans		—		—		19,571		19,571		—		—
Residential mortgage loans and equity lines		—		—		5,973		5,973		—		—
Total impaired loans		—		—		25,984		25,984		—		—
Other real estate owned (1)		—		8,850		4,343		13,193		72		33
Investments in venture capital and private company stock		—		—		2,061		2,061		2		173
Total assets	$	—	$	8,850	$	32,388	$	41,238	$	74	$	206

	As of December 31, 2018								Total Losses/(Gains)
	Fair Value Measurements Using						Total Fair Value		For the Twelve Months Ended
	Level 1		Level 2		Level 3		Measurements		December 31, 2018			December 31, 2017
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	—	$	—	$	4,733	$	4,733	$	—		$	25
Commercial mortgage loans		—		—		26,186		26,186		—			—
Residential mortgage loans and equity lines		—		—		6,850		6,850		—			—
Total impaired loans		—		—		37,769		37,769		—			25
Other real estate owned (1)		—		9,023		4,343		13,366		(619	)		457
Investments in venture capital and private company stock		—		—		2,162		2,162		330			392
Total assets	$	—	$	9,023	$	44,274	$	53,297	$	(289	)	$	874