Note 16 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Text Block [Abstract]

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

As of December 31, 2013	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	$	460,193	$	-	$	-	$	460,193
Mortgage-backed securities		-		952,815		-		952,815
Collateralized mortgage obligations		-		6,106		-		6,106
Asset-backed securities		-		123		-		123
Corporate debt securities		-		150,304		-		150,304
Mutual funds		5,724		-		-		5,724
Preferred stock of government sponsored entities		-		11,403		-		11,403
Total securities available-for-sale		465,917		1,120,751		-		1,586,668
Trading securities		-		4,936		-		4,936
Warrants		-		-		30		30
Option contracts		-		0		-		0
Foreign exchange contracts		-		6,182		-		6,182
Total assets	$	465,917	$	1,131,869	$	30	$	1,597,816
Liabilities
Foreign exchange contracts		-		6,140		-		6,140
Total liabilities	$	-	$	6,140	$	-	$	6,140

As of December 31, 2012	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	$	509,971	$	-	$	-	$	509,971
Mortgage-backed securities		-		416,694		-		416,694
Collateralized mortgage obligations		-		10,168		-		10,168
Asset-backed securities		-		141		-		141
Corporate debt securities		-		335,977		-		335,977
Mutual funds		6,079		-		-		6,079
Preferred stock of government sponsored entities		-		2,335		-		2,335
Trust preferred securities		10,115		-		-		10,115
Total securities available-for-sale		526,165		765,315		-		1,291,480
Trading securities		-		4,703		-		4,703
Warrants		-		-		104		104
Option contracts		-		0		-		0
Foreign exchange contracts		-		2,924		-		2,924
Total assets	$	526,165	$	772,942	$	104	$	1,299,211
Liabilities
Option contracts	$	-	$	2	$	-	$	2
Foreign exchange contracts		-		1,586		-		1,586
Total liabilities	$	-	$	1,588	$	-	$	1,588

Fair Value Measurements, Nonrecurring [Table Text Block]

	As of December 31, 2013								Total Losses/(gains)
	Fair Value Measurements Using						Total at		For the Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2013			December 31, 2012
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	7,584	$	7,584	$	5,731		$	-
Commercial mortgage loans		-		-		29,001		29,001		125			440
Construction- residential		-		-		500		500		-			-
Construction- other		-		-		15,363		15,363		-			65
Residential mortgage and equity lines		-		-		14,236		14,236		213			605
Land loans		-		-		29		29		-			162
Total impaired loans		-		-		66,713		66,713		6,069			1,272
Other real estate owned (1)		-		13,248		26,498		39,746		(3,134	)		10,904
Investments in venture capital and private company stock		-		-		8,900		8,900		409			309
Equity investments		642		-		-		642		-			181
Total assets	$	642	$	13,248	$	102,111	$	116,001	$	3,344		$	12,666

	As of December 31, 2012								Total Losses
	Fair Value Measurements Using						Total at		For the Twelve Months Ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2012		December 31, 2011
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	3,492	$	3,492	$	-	$	877
Commercial mortgage loans		-		-		11,295		11,295		440		-
Construction- residential		-		-		500		500		-		-
Construction- other		-		-		46,153		46,153		65		-
Residential mortgage and equity lines		-		-		11,206		11,206		605		820
Land loans		-		-		297		297		162		46
Total impaired loans		-		-		72,943		72,943		1,272		1,743
Other real estate owned (1)		-		27,149		4,841		31,990		10,904		7,003
Investments in venture capital and private company stock		-		-		9,001		9,001		309		379
Equity investments		142		-		-		142		181		200
Total assets	$	142	$	27,149	$	86,785	$	114,076	$	12,666	$	9,325