Note 12 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

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

June 30, 2018	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Debt securities available-for-sale
U.S. Treasury securities	$	348,544	$	-	$	-	$	348,544
U.S. government agencies		-		8,189		-		8,189
U.S. government sponsored entities		-		383,959		-		383,959
Mortgage-backed securities		-		658,288		-		658,288
Collateralized mortgage obligations		-		1,203		-		1,203
Corporate debt securities		-		75,766		-		75,766
Total debt securities available-for-sale		348,544		1,127,405		-		1,475,949
Equity securities
Preferred stock of government sponsored entities		7,480		-		-		7,480
Mutual funds		6,082		-		-		6,082
Other equity securities		9,569		-		-		9,569
Total equity securities		23,131		-		-		23,131
Warrants		-		-		176		176
Interest rate swaps		-		14,801		-		14,801
Foreign exchange contracts		-		389		-		389
Total assets	$	371,675	$	1,142,595	$	176	$	1,514,446
Liabilities
Option contracts	$	-	$	9	$	-	$	9
Interest rate swaps		-		157		-		157
Foreign exchange contracts		-		2,083		-		2,083
Total liabilities	$	-	$	2,249	$	-	$	2,249

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 June 30, 2018								Total (Gains)/Losses
	Fair Value Measurements Using						Total at		For the Three Months Ended					For the Six Months Ended
	Level 1		Level 2		Level 3		Fair Value		June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	755	$	755	$	-		$	497	$	-	$	1,273
Commercial mortgage loans		-		-		26,409		26,409		-			-		-		250
Residential mortgage loans and equity lines		-		-		7,605		7,605		-			-		-		-
Total impaired loans		-		-		34,769		34,769		-			497		-		1,523
Other real estate owned (1)		-		4,363		4,343		8,706		(33	)		212		-		249
Investments in venture capital and private company stock		-		-		2,383		2,383		91			166		264		352
Total assets	$	-	$	4,363	$	41,495	$	45,858	$	58		$	875	$	264	$	2,124

	As of December 31, 2017								Total Losses
	Fair Value Measurements Using						Total at		For the Twelve Months Ended
	Level 1		Level 2		Level 3		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 loans 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 and private company stock		-		-		2,583		2,583		392		976
Total assets	$	-	$	5,677	$	67,816	$	73,493	$	874	$	1,307