Note 15 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

As of December 31, 2018	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(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

As of December 31, 2017	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	249,520	$	-	$	-	$	249,520
U.S. government agency entities		-		8,988		-		8,988
U.S. government sponsored entities		-		390,336		-		390,336
State and municipal securities		-		1,914		-		1,914
Mortgage-backed securities		-		571,969		-		571,969
Collateralized mortgage obligations		-		1,516		-		1,516
Corporate debt securities		-		81,281		-		81,281
Mutual funds		6,230		-		-		6,230
Preferred stock of government sponsored entities		10,102		-		-		10,102
Other equity securities		11,770		-		-		11,770
Total securities available-for-sale		277,622		1,056,004		-		1,333,626
Warrants		-		-		91		91
Interest rate swaps		-		5,218		-		5,218
Foreign exchange contracts		-		1,832		-		1,832
Total assets	$	277,622	$	1,063,054	$	91	$	1,340,767
Liabilities
Option contracts	$	-	$	9	$	-	$	9
Interest rate swaps		-		2,699		-		2,699
Foreign exchange contracts		-		453		-		453
Total liabilities	$	-	$	3,161	$	-	$	3,161

Fair Value Measurements, Nonrecurring [Table Text Block]

	As of December 31, 2018								Total Losses/(Gains)
	Fair Value Measurements Using								For the Twelve Months Ended
	Level 1		Level 2		Level 3		Total at Fair Value		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 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		-		-		2,162		2,162		330			392
Total assets	$	-	$	9,023	$	44,274	$	53,297	$	(289	)	$	874

	As of December 31, 2017								Total Losses/(Gains)
	Fair Value Measurements Using								For the Twelve Months Ended
	Level 1		Level 2		Level 3		Total at Fair Value		December 31, 2017		December 31, 2016
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	18,097	$	18,097	$	25	$	322
Commercial mortgage loans		-		-		31,459		31,459		-		-
Residential mortgage and equity lines		-		-		11,355		11,355		-		-
Total impaired loans		-		-		60,911		60,911		25		322
Other real estate owned (1)		-		5,677		4,322		9,999		457		9
Investments in venture capital		-		-		2,583		2,583		392		976
Total assets	$	-	$	5,677	$	67,816	$	73,493	$	874	$	1,307