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Note 15 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

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

As of December 31, 2016		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		$	489,017			$	-			$	-			$	489,017
U.S. government sponsored entities			-				390,331				-				390,331
Mortgage-backed securities			-				336,260				-				336,260
Collateralized mortgage obligations			-				28				-				28
Corporate debt securities			-				74,350				-				74,350
Mutual funds			6,230				-				-				6,230
Preferred stock of government sponsored entities			7,308				-				-				7,308
Other equity securities			10,821				-				-				10,821
Total securities available-for-sale			513,376				800,969				-				1,314,345
Warrants			-				-				79				79
Interest rate swaps			-				938				-				938
Foreign exchange contracts			-				1,302				-				1,302
Total assets		$	513,376			$	803,209			$	79			$	1,316,664
Liabilities
Option contracts		$	-			$	121			$	-			$	121
Interest rate swaps			-				3,744				-				3,744
Foreign exchange contracts			-				3,132				-				3,132
Total liabilities		$	-			$	6,997			$	-			$	6,997

Fair Value Measurements, Nonrecurring [Table Text Block]

		As of December 31, 2017																Total Losses/(Gains)
		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 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

		As of December 31, 2016																Total Losses/(Gains)
		Fair Value Measurements Using												Total at				For the Twelve Months Ended
		Level 1				Level 2				Level 3				Fair Value				December 31, 2016				December 31, 2015
		(In thousands)
Assets
Impaired loans by type:
Commercial loans		$	-			$	-			$	2,813			$	2,813			$	322			$	806
Commercial mortgage loans			-				-				9,444				9,444				-				598
Residential mortgage and equity lines			-				-				11,679				11,679				-				146
Total impaired loans			-				-				23,936				23,936				322				1,550
Other real estate owned (1)			-				6,006				4,372				10,378				9				404
Investments in venture capital and private company stock			-				-				3,667				3,667				976				553
Total assets		$	-			$	6,006			$	31,975			$	37,981			$	1,307			$	2,507

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- Definition

Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

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