Note 12 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

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

September 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	$	199,374	$	-	$	-	$	199,374
U.S. government agencies		-		6,511		-		6,511
U.S. government sponsored entities		-		383,447		-		383,447
Mortgage-backed securities		-		626,639		-		626,639
Collateralized mortgage obligations		-		1,086		-		1,086
Corporate debt securities		-		66,003		-		66,003
Total debt securities available-for-sale		199,374		1,083,686		-		1,283,060
Equity securities
Preferred stock of government sponsored entities		6,397		-		-		6,397
Mutual funds		6,034		-		-		6,034
Other equity securities		11,091		-		-		11,091
Total equity securities		23,522		-		-		23,522
Warrants		-		-		168		168
Interest rate swaps		-		18,419		-		18,419
Foreign exchange contracts		-		400		-		400
Total assets	$	222,896	$	1,102,505	$	168	$	1,325,569
Liabilities
Option contracts	$	-	$	4	$	-	$	4
Foreign exchange contracts		-		1,648		-		1,648
Total liabilities	$	-	$	1,652	$	-	$	1,652

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 September 30, 2018								Total Losses
	Fair Value Measurements Using						Total at		For the Three Months Ended				For the Nine Months Ended
	Level 1		Level 2		Level 3		Fair Value		September 30, 2018		September 30, 2017		September 30, 2018		September 30, 2017
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	3,209	$	3,209	$	-	$	-	$	-	$	25
Commercial mortgage loans		-		-		26,606		26,606		-		-		-		-
Residential mortgage loans and equity lines		-		-		6,323		6,323		-		-		-		-
Total impaired loans		-		-		36,138		36,138		-		-		-		25
Other real estate owned (1)		-		4,918		4,343		9,261		-		405		-		654
Investments in venture capital and private company stock		-		-		2,188		2,188		62		12		326		365
Total assets	$	-	$	4,918	$	42,669	$	47,587	$	62	$	417	$	326	$	1,044

	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